absolute value
distance between a number and zero on the number line
acid
any compound with a hydrogen ion activity greater than water (pH<7)
acid solutions
solutions that have a pH scale value less than 7
activation energy
energy necessary for a chemical reaction to occur
active verb
verb that shows an action performed by the subject of the sentence
active voice
state of a sentence that contains an active verb
adaption
increase from generation to generation of alleles of genes that allows a species to survive in their environment
addition principle
rule that makes it possible to move terms from one side of an equation to the other by adding opposites to each expression
adenosine triphosphate (ATP)
cellular fuel; produced in the mitochondria
adjective
descriptive word that modifies nouns or pronouns
adverb
word modifying a verb, adjective, or other adverb indicating when, how, where, why, or how much
alkane
hydrocarbon with only single bonds (CnH2n+2)
alkene
hydrocarbon with one double bond (CnH2n)
alkyne
hydrocarbon with one triple bond (CnH2n-2)
alleles
two or more different forms of a certain gene
alveoli
structure in the lungs that permits the exchange of oxygen and carbon dioxide to occur
amino acid
building blocks of proteins
anatomical position
a standard position in which the body is facing forward, the feet are parallel to each other, and the arms are at the sides with the palms facing forward
anatomy
study of the structure of various organs and body systems
anion
atom or molecule with a negative charge
antecedent
noun that a pronoun refers back to (replace)
anterior
toward the front of the body or body structure (opposite of posterior)
antibody
protein produced by a B cell in response to an antigen
antigen
a foreign protein, such as a pathogen, that stimulates antibody production
apostrophe
punctuation mark (')used to indicate possessiveness or the omission of letters or numbers
Arabic numerals
written numbers that use a combination of the whole numbers 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9
arteries
blood vessels that transport blood away from the heart to the capillaries
article
word that is used to limit a noun, either indefinite - a, an - or definite - the
atom
smallest part of an element that still retains all the original properties of the element
atomic mass
number of protons and neutrons within the nucleus of an atom; the average mass of all of the known isotopes of an element
atomic number
number of protons in the nucleus of the chemical element; the number of protons that defines a specific atom
attributive tag
part of a sentence that indicates who said a direct quote
audience
person or persons who will be reading a piece of writing
author's intent
underlying reason why the author wrote the text
autonomic nervous system
branch of the peripheral nervous system that controls automatic body functions like heartbeat and digestion
autotroph
organism that is able to produce its own food
axon
part of the nerve cell that carries impulses away from the cell body and connects on neuron with another neuron over a synapse
B cell
type of lymphocyte that produces antibodies in response to antigens; responsible for humoral immunity
bar graph
graph used to compare the frequency of an event; frequencies are displayed as vertical or horizontal, non-touching bars; data is usually noncontinuous
base
any compound with a hydrogen ion activity less than water (pH>7)
basic solutions
solutions that have a pH scale value greater than 7
biases
opinions or beliefs that affects a person's ability to make fair, unclouded judgments or decisions
binomial
polynomial that has two terms
binomial nomenclature
two-word naming system that includes the universally accepted genus and species of each organism; developed by Carolus Linnaeus
bronchial tubes
small respiratory passages that connect the trachea to the lungs
calories
Joules
capillaries
tiny blood vessels that transport blood between arteries and veins within the body
catalyst
substance that controls the rate of a chemical reaction
cation
atom or molecule with a positive charge
cause-effect text structure
first presents an action, and then describes the effects that result (or may result) from that action
cell
basic unit of all life
cell wall
outside, rigid layer that helps separate the inside and outside of both prokaryotic and plant cells
cellular respiration
process in which glucose is used to produce adenosine triphosphate
Celsius
metric temperature scale defined (at standard pressure) by the meeting point of ice (0 degree Celsius) and the boiling point (100 degrees Celsius) of liquid water
central nervous system
branch of the nervous system that includes the brain and spinal cord
centrosome
microtubules organizing center that helps to form and organize the mitotic spindle during mitosis
charge
positive or negative distribution within an object
Charles Darwin
evolutionary biologist who studied life on the Galapagos Islands in the 1800s and wrote "On the Origin Species", in which he explained adaption and natural selection
chemical bonding
chemical attraction of atoms due to their electron arrangement
chemical reaction
dynamic event that alters the chemical makeup of a molecule; a process that chemically transforms a set of substances into another set
chemotaxis
release of chemicals by damaged cells that attract white blood cells
chlorophyll
green pigment in plants
chloroplast
organelle that contains chlorophyll and is found in plants; used to carry out photosynthesis
chromatid
one of a pair of newly duplicated chromosomes that are still attached to one another; a pair of matching "sister" chromatids make up the duplicated chromosome
chromosomes
condensed, single, very long strands of DNA double helix located in the nucleus of a cell and containing hundreds of genes
chyme
mixtures of food, chemicals, and enzymes in the stomach
cilia
tiny hairs in the bronchial tubes that keep the airway clear by removing unwanted matter from the lungs
circle graph
divided into sectors representing the frequency of an event; sectors total 100%
circulatory system
transportation highway for the entire body (also known as the cardiovascular system)
clause
group of words that are related and contain both a subject and a property conjugated verb
codon
group of three nucleotides on RNA or DNA that encodes for a single, specific amino acid
coefficient
numerical part of a term
colon
punctuation mark (;) used to indicate that there is information to follow
comma
punctuation mark (,) used to indicate a break or pause within a sentence
comparison-contrast text structure
presents two different cases, usually with the intent of making the reader consider the differences (or similarities) between the two cases
compass-rose
symbol that indicates the cardinal directions (north, south, east, and west) as they relate to the map
complex sentence
sentence that contains an independent clause and a dependent clause
compound sentence
two (or more) independent clauses joined together with a coordinating conjunction
connective tissue
connects different structures of the body; includes bones, cartilage, adipose tissue (fats), and blood vessels
constant
quantity that does not change; it's what students refer to as "numbers" such as 8, -3, 1/2, 1/4, 0.45, etc
context
text surrounding a word, phrase, or passage
context clues
words surrounding an unfamiliar word that can help a reader discern the meaning of the unfamiliar word
coordinating conjunctions
words that join two or more words, phrases, or clauses so that each conjoined element is equal; in English, there are only seven, and they may be remembered using the actonym FANBOYS (for, and, nor, but, or, yet, and so)
covalent
sharing of electrons between atoms
cristae
series of folds formed by the inner membrane of a mitochondrion
critical reading
reading style where the reader carefully analyzes the text, judging its credibility and the author's intentions, rather than simply accepting the material as fact
crude birth rate
number of childbirth per 1,000 people per year
crude death rate
number of deaths per 1,000 people per year
crystalline order
atoms arranged in a high ordered state
cumulative sentence
contains an independent clause followed by a parallel string of modifiers; modifiers may be adjectives; prepositional phrases, or dependent clauses
cytokines
chemical messengers that are released by damaged tissues
cytokinesis
division and separation of the cytoplasm from one cell into two new cells; is accomplished by pinching off of the cell membrane to form two cells while simultaneously synthesizing an additional membrane to help in the process; begin in late anaphase and completes in telophase
cytoplasm
rich protein fluid with gel-like consistency that houses organelles
deductions
items that are subtracted from a beginning salary (i.e., state taxes, federal taxes, health insurance, and retirement contributions)
deductive reasoning
method whereby conclusions follow from a general principle
deep
away from or below the body surface (opposite of superficial)
degree
exponent or sum of exponents of the variable(s) of a term
dendrites
branched extensions of the neuron that receive impulses (electric messages) from other neurons and stimuli
denominator
b in the fraction a/b
density
ratio of mass per volume for a substance
dependent clause
group of words containing a subject with a properly conjugated verb that is made dependent or incomplete because of the addition of a subordinating conjunction
dependent variable
depends on another variable
description
passage of text that describes or characterizes a person, thing, or idea
diapedesis
process of white blood cells squeezing through the capillary slits in response to cytokines
diaphragm
dome-shaped muscle located immediately below the lungs that stimulates inhalation and exhalation by contraction and relaxing
diatomic molecule
molecule consisting of two atoms
digestion
mechanical and chemical breakdown of foods
digestive system
manufactures enzymes that break down food so that nutrients can be easily passed into the blood for use through the body; consists of all the organs from the mouth to the anus involved in the ingestion, breakdown, and processing of food
diploid cell
containing two sets of chromosomes
direct dialogue (or direct discourse)
writing that reflects someone's exact words, often with an attributive tag, using quotation marks
direct object
noun or pronoun that receives the action of the verb and answers the question whom or what
distal
away from the origin of the body part or point of attachment (opposite of proximal)
distance scale
information in the legend that tells the reader how to interpret distances on the map
distributive property
property that removes prenthesis in an expression, such as a(x+y)=ax+ay
dividend
quantity to be divided
divisor
quantity by which another quantity is dividend
DNA (deoxyribonucleic acid)
a molecule that exists as a double-stranded helix made from sugars, phosphates, and nitrogenous bases
dorsal body cavity
contains the cranial cavity and spinal column
duodenum
first section of the small intestine
effectors
glands and muscles that are innervated and extend away from the spinal cord
electrolysis
use of electric current to drive the breakdown of a molecule
electromagnetic waves
waves of radiation that are characterized by electric and magnetic fields; waves are members of a spectrum, a continuum of wavelengths raising from very short (trillionth of a meter) to very long (kilometers) that are divided into bands of wavelengths, ordered from short to long in the order of gamma rays, x-rays, ultraviolet, visible, infrared, microwave, and radio waves; visible part of the spectrum can be further subdivided by color bands from short to long in the order of violet, indigo, blue, green, yellow, orange, and red
electronegativity
ability of an atom to attract electrons to itself
electrons
negatively charged subatomic particles found in various orbits around the nucleus
element
substance that cannot be decomposed by ordinary chemical means; each chemical element is characterized by the number of protons in the nucleus (e.g., all atoms of hydrogen have 1 proton, and atoms of oxygen have 8 protons)
ellipsis
punctuation mark (...) used to indicate a pause or omission of material
embryo
early development of an animal or a plant after fertilization
emigration
act of an individual moving out of one region or country to live in another
endocrine system
controls body functions; glands in this system secrete hormones that travel through the blood to organs throughout the body to regulate processes such as growth and metabolism
endoplasmic reticulum (ER)
tubular transport network with the cell that appears as a stack of flattened membranous sacs
enzyme
protein catalyst; chemical that changes the rate of a chemical reaction in living tissue without itself being chemically altered; a chemical that breaks down proteins, carbohydrates, and fats into nutrients that can be absorbed through the wall of the intestine into the bloodstream
epithelial tissue
provides covering (such as skin tissue) or produces secretion (such as glandular tissue); commonly exists in sheets and does not have its own blood supply
equation
mathematical sentence in which two expressions are set equal to each other
estimate
approximate value
etymology
history of a given word; a word's origin
eukarya
organism that contains cellular organelles; organisms that has cells that contain nuclei (protists, plants. fungi and animals)
excision repair
mechanism that inspects the DNA for damage and attempts to repair it
expiration
act of exhailing carbon dioxide from the body
exponents
number written as a superscript that is used to denote the number of times a number should be multiplied by itself
expository writing
introduces a topic or provides background information for later remarks
expression
one or more terms consisting of any combination of constants and/or variables
fact
information based on real, provable events or situations
fertility rate
average number of children a woman will have during her childbearing years (from the ages of 15 to 44)
first-person point of view
perspective in which the narrator is the one speaking, evidenced by the use of the first-person pronoun I or we
flagella
long, whip-like structure used for cellular movement in certain prokaryotic cells
FOIL
acronym that represents the order in which two binomials can be multiplied; stands for first, outer, inner, last
frontal section
cut made along a longitudinal plane that divides the body into front and back regions; coronal section
gametes
cells of reproduction
ganglia
collection of nerve cell bodies
gendered language
specifies male or female gender using words such as he or she; neuter gender words like it do not specify male or female gender, but are rare in English
gene
portion of DNA on a chromosome that provides information for an organism's characteristics; genetic blueprint for the formation of proteins that make up the machinery of the cell
genome
complete set of DNA for an individual; contains all genes
genotype
organism's underlying genetic makeup or code
germ cells
reproductive cells that give rise to sperm and ovum
globular protein
protein that is roughly spherical in shape
Golgi apparatus
structure involved in packaging and transporting proteins in the cell
greatest common factor
greatest number that will divide evenly into two or more numbers
haploid cell
one set of chromosomes
headings
titles that preface a section of text; advertise the subject of the text below, making it easier to skim or search form a particular topic; give the text structure
heart
organ that rhythmically contracts and pumps blood throughout the body
heat
flow of energy due to a difference in temperature
heat of vaporization
amount of heat necessary to cause a phase transition between a liquid and a gas
heterotroph
organism that cannot produce its own food
heterozygous
having received different alleles for a particular trait from each parent
histogram
graph used to compare the frequency of an event; frequencies are displayed as vertical, touching bars, and data is usually continuos
historical context
time and place in which a text was written; style and content of a text are part of its historical context
homeotasis
a stable stat in which all the needs of a body are met and all of the organ systems working properly together
homologous
similiar in size and function
homozygous
having received the same allele for a particular trait from both parents
hydrocarbon
compound whose structure is entirely composed of hydrogen and carbon atoms
hyphen
punctuation mark (-) used to connect parts of a word or to join separate words together
hypothesis
possible explanation formulated to answer questions that are being investigated; involves making predictions that follow from the initial statement of a problem
immigration
act of an individual moving into a region or country to live
immune system
tissues, cells, and organs that work together to fight off illness and disease
improper fraction
fraction whose numerator is greater than its denominator
incomplete dominance
dominant and recessive genotypes interact to produce an intermediate phenotype
independent clause
clause that has a complete meaning
independent variable
does not depend on another variable; affects the dependent variable
index
listing of important names, ideas, and topics from the publication, along with page numbers (or links to those items); traditionally appears at the end of the publication
indirect dialogue (for indirect discourse)
writing that reflects the idea of someone else's words but does not quote them directly
inductive reasoning
arriving at general principles from specific facts
inequality
mathematical sentence in which one expression may not be equal to another expression
inference
logical conclusion or next step; inferred conclusion not actually written in the text, but deduced by the reader, based on information that is in the text
inferior
toward the lower end of the body or body structure (opposite of superior)
inspiration
act of breathing in oxygenated air
integumentary system
protects internal tissue from injury, waterproofs the body, and helps regulate body temperature; serves as a barrier to pathogens; consists of the skin, mucous membranes, hair, and nails
interferon
protein that inhibits the reproduction of a vein
intermediate
between the medial and lateral aspects of the body or body structures
interphase
process that occurs prior to mitosis; occurs when the cell must duplicate its DNA, increase the amount of organelles and cytoplasm, and synthesize protein in preparation for cell division; three stages of interphase are Gap 1 (G1), Synthesis (S), and Gap 2 (G2)
ion
positively or negatively charged atom
ionic
electrical attraction between ions of opposite charges
irrational number
any real number that cannot be written as a fraction
isotope
atoms with the same number of protons but differing numbers of neutrons
Joule
a common metric unit of energy (1 calorie=4.2 Joules)
Kelvin
metric temperature scale defined by an absolute zero reference point (0 Kelvin= -273 degrees Celsius, the temperature at which molecular motion ceases)
kinetic energy
the energy of motion
latent heat
heat per mass needed for a phase change at a constant temperature
lateral
toward the outer sides of the body or body structure (opposite of medial)
Law of Conversation of Energy
If a system is closed, the total amount of energy in the system does not change; however, energy can be changed from one form to another
least common denominator (LCD)
smallest common multiple of the denominators; the LCD of two fractions is the least number that both denominators divide into evenly
legend
small portion of a map devoted to explaining the symbols and notations used in the main portion of the map
leukocytes
white blood cells
Lewis structure
symbolic representation of covalent bonding between atoms
light-year
distance that light will travel within 1 year
like terms
terms that have the same variable and the same exponent associated with that variable
line graph
shows change over time; compares the relationship between two or more quantities
logical conclusion
well-reasoned idea that stems from the information in the text, not from the reader's personal ideas or biases
loose sentence
see cumulative sentence
lungs
paired organs that take in oxygen and exhale carbon dioxide
lymphatic system
supports the immune system by housing and transporting white blood cells to and from lymph nodes; returns fluid that has leaked from the cardiovascular system back into the blood vessels; consists of the lymph nodes, the vessels that carry lymph, the spleen, the thymus, and the tonsils
lyse
Latin word for break; used in biology and chemistry to mean rupture or destruction of the cell membrane, a cell membrane, a cell structure ,or a molecule
lysosome
organelle containing digestive enzymes capable of disposing of cellular debris and worn cellular parts
main idea
specific message of a writing
mass
quantity of matter within an object
mass number
total number of protons and neutrons found within the nucleus of an atom matter anything that takes up space and has mass
medial
toward the middle of the body or body structure (opposite of lateral)
meiosis
process by which gametes reduce their DNA content
metabolic pathways
chemical reactions within a cell
metabolism
chemical reaction in living organisms used to maintain life
metalloids
elements that may accept or donate electrons readily; possess a mixture of metallic and nonmetallic properties
metals
elements that readily donate electrons and are good conductors of electricity; donate highly conductive electrons to their environment
metaphase plate
disc extending across the nuclear area on which the chromosomes are found at metaphase just prior to separation of the chromosomes during mitosis
microtubules
cellular tracks that form the mitotic spindle during mitosis
mircovilli
microscopic projections of tissues that make up the villi
midsagittal section
sagittal section made the median of the body
mismatch repair
mechanism that scans over the DNA to find any mismatches of nitrogenous bases
mitochondrion
powerhouse of the cell
mitosis
process of cell duplication in which two daughter cells receive exactly the same nuclear material as the original cell
mixed number
number that represents the sum of a whole number and a proper fraction
molecule
group of chemically bonded atoms that posses characteristics independent of the atoms themselves
monomial
polynomial that has only one term
multiplication principle
rule that states that the equality of an equation does not change if both sides of an equation are multiplied by the same nonzero number
muscle tissue
dedicated to producing movement; three types include skeletal, cardiac, and smooth
muscular system
consists of skeletal muscles, tendon that connect muscles to bones, and ligaments that attach bones together to form joints
mutagen
substance that induces mutations
mutation
permanent change in DNA sequence
narrative writing
relates a chain of events or tells a story
natural selection
process in which individuals of a species carrying certain mutations are better able to survive and reproduce in their natural environment than other members of the species (survival of the fittest)
nervous system
serves as the body's control system; consists of the brain, spinal cord, and nerves
nervous tissue
structure for the brain, spinal cord, and nerves; made up of neurons that send electrical impulses throughout the body
neurons
specialized cells that make up the nervous system and transmit electrical impulses
neutron
neutral subatomic particle found in the nucleus of an atom
nitrogenous base
molecule found in DNA and RNA that encodes the genetic information in cells
nominalization
changing a verb, adverb, or adjective to a noun
nonrestrictive clause
group of words that contains a subject and a properly conjugated verb but does not contain information that is necessary to interpreting the meaning of the sentence
nonrestrictive phrase
group of words that does not contain both a subject and a verb and does not contain information that is necessary to interpreting the meaning of the sentence
noun
a word for a person, place, or thing
nucleic acid
chain of nucleotides
nucleoid
condensed DNA of a cell
nucleolus
small body within the nucleus that functions to produce ribosomes that are then moved to the cytoplasm to make cell proteins
nucleotide
molecule that consists of a pentose, a phosphate group, and a nitrogenous base
nucleus
central region of an atom; large organelle that is the control center of the entire cell
numerator
a in the fraction
object of the preposition
noun, pronoun, phrase, or clause to which the preposition refers
opinion
belief based on personal judgment, rather no indisputable facts
orbital shell
arrangement of electrons within a specific region around the nucleus
ordered pair
denotes the x-coordinate (position of a point along the horizontal axis) and y-coordinate (position of the point along the vertical axis) on a graph, written (x,y)
organ
two or more tissue types that work together to perform a specific function
organelle
tiny organ
organic chemistry
study of the structure and properties of carbon compounds
organism
living body made up of several organ systems
oxidation
electron donation by a chemical group that leaves that group with one less electron and a more positive charge
paragraph
group of sentences that forms a cohesive whole due to a similar topic or theme
parasympathetic nerve
branch of the autonomic nervous system that is active when a person is eating or at rest
parentheses
punctuation marks () used to indicate interjectory, explanatory, or qualifying material; parentheses always come in pairs
passive verb
comprised of be plus a past participle that shifts the action of a sentence from the subject to the oject
passive voice
state of a sentence that contains a passive verb
pathogen
any disease-causing agent
pentose
type of sugar
percent
ratio whose denominator is 100; per 100
perforin
pore-forming protein
periodic sentence
independent clause is delayed until the end of the sentence and is often preceded by parallel strings of modifiers
peripheral nervous system
branch of the nervous system that extends outside of the central nervous system and consists of the cranial and spinal nerves
peristalsis
rhythmic contractions of the stomach and intestines that propel food toward the colon and anus
peroxisome
organelle used to rid the body of toxic components
persuasive writing
writing intended to change the reader's mind or form the reader's opinion on a particular topic
pH
measure of hydrogen ion concentration within a solution; the scale used to measure the strength of acidic solutions; pH= -log (hydrogen ion concentration)
pH indicator
chemical detector of hydrogen ions to visually determined acidity (color change)
phagocytosis
engulfing of pathogens by white blood cells
phase transition
alteration of the physical state of a substance between a solid, liquid, and gas
phenotype
physical expression of genetic traits
phosphate group
molecule in the backbone of DNA and RNA that links adjoining bases together
photosynthesis
process carried out by green plants, green algae, and certain bacteria, in which the energy from sunlight is trapped by chlorophyll and used for synthesis of glucose
phrase
group of words that are related bu do not contai a verb and a subject together
physical bonding
physical connection between atoms (or molecules) that does not alter the chemical nature of the atoms (or molecules)
physiology
study of the function of the various organs and body system
pie chart
see circle graph
plasmids
small circular portions of DNA not associated with the nucleoid
point of view
perspective from which an author writers
polar molecule
possesses both positive and negative regions
polynomial
term or combination of terms
possessive pronoun
used to indicate ownership
posterior
toward the back of the body or body structure (opposite of anterior)
potential energy
stored energy
prefix
group of letters added to the beginning of a word that modifies or extends the word's meaning
preposition
words such as by, at, to, and from that give additional information, usually in relationship to something else
primary source
firsthand record of events, theories, opinions, or actions; either published or unpublished documents, recordings, or artifacts that are contemporary to the events, people, or information that is at tissue
problem-solution text structure
prevents a problem or question, and then responds with a solution or answer
products
substances formed as the result of chemical reactions
prokaryote
single-celled organism lacking defined cellular organelles or a nucleus
pronoun
word that replaces a noun
proper fraction
fraction whose numerator is less than its denominator
proportion
two ratios that are set equal to each other
protein
compound composed of a large number of amino acids joined in a particular type of chemical bond called a peptide bond
proton
positively charged subatomic particle found in the nucleus of an atom
proximal
close to the origin of the body part or point of attachment (opposite of distal)
Punnett square
graphical way to show all possible combinations of alleles given the two parents' genotypes
purine
nitrogenous base with two rings (adenine and guanine)
purpose of a passage
main reason or intent for writing a particular piece
pyloric sphincter
muscle that separates the stomach from the duodenum and slowly releases chyme from the stomach into the small intestine (duodenum)
pyrimidine
nitrogenous base with one ring (thymine, cytosine, uracil)
quantitative
relating to numbers
quotation marks
punctuation marks (" ") used to indicate the exact phrasing of material or to show dialogue; always come in parts
quotient
c in the equation = c
rate of charge
speed at which something changes
ratio
relationship between two quantities
rational number
any real number that can be written as a fraction
reactants
substances consumed or altered in a chemical reaction
real number
any number on the number line
reciprocal
the multiplicative inverse of a number; the reciprocal of a/b is b/a
reduction
electron acceptance by a chemical that produces a more negative charge on the group
reflex
automatic response to a stimulus that occurs when neurons transmit a message to the spinal cord, which in turn sends a message back to the muscles to react before the message is transmitted to the brain
reproductive system
main purpose is to produce offspring; hours hormones that encourage or suppress activities within the body (e.g., libido and aggression)and influences the development of masculine or feminine body characteristics; consists of the testes and penis or the ovaries, vagina, and breasts
respiratory system
organ system that provides for air exchange by supporting tissues with oxygenated blood and removing carbon dioxide
ribosome
organelle responsible for synthesizing protein within the cell from amino acids
RNA (ribonucleic acid)
single-stranded molecule made from sugar, phosphates, and nitrogenous bases; required for the transfer and translation of the DNA code within a cell
Roman numerals
written numbers that use a combination of M, D, C, L, X, V, and I
root word
a word in its simplest form before any affixes are attached
sagittal section
cut made along a longitudinal plane that divides the body into right and left parts
salt
neutral product of an anion and a cation
saturated hydrocarbon
chemical structure composed entirely of single bonds
scale
any standard instrument of measurement that has marking at established intervals
second-person point of view
perspective in which the writer directly addresses the reader using the pronoun you
secretion
process of moving proteins outside of the cell
semicolon
punctuation mark (;) used to indicate division between equal elements in a sentence
sensory neurons
neurons that carry messages from sense organs to the brain and spinal cord
sensory-somatic nervous system
part of the peripheral nervous system that consists of 12 pairs of cranial nerves, 31 pairs of spinal nerves. and associated ganglia; controls voluntary actions of the body
sequence
ordered list of thoughts or ideas
simple sentence
contains only one independent clause and no dependent clauses
simplified fraction
has no common factors between the numerator and the denominator except for the number 1 (a reduced fraction)
skeletal system
supports and protects the body and its organs; supplies a framework that, when used in conjunction with the muscles, creates movement; serves as storage for minerals, such as calcium and phosphorus; consists of bones, cartilage, ligaments, and joints
specific heat
energy required to raise one unit of mass in a substance by 1 degree Celcius
stem cells
can divide and remain undifferentiated; gives rise to a variety of more-specialized cells
stereotypes
oversimplified opinions about an entire group of people or things that do not account for individual differences
stimulus
change in the environment that triggers a physical response
subheadings
headings that appear below other headings; appear in a smaller typeface than headings, so that they may easily be distinguished; single heading may have many subheadings, and these subheadings may have their own subheadings
subject
noun or pronoun that performs the action of the verb in a sentence; if a sentence contains a verb of being or a linking verb such as be, feel, become, or look, the subject of the sentence is the noun or pronoun being described
subordinating conjunction
word that joins two or more clauses and makes the clause that contains it dependent on another clause, and therefore of slightly less importance; there are many subordinating conjunctions, but some common ones are because, though, although, while, if, and as if
substrate
molecule acted upon by an enzyme
suffix
group of letters added to the end of a word that modifies or extends the word's meaning
summary sentence
recaps the essential point(s) of a paragraph, or of a larger work, such as an essay; gives the reader the take-away message for the paragraph, or for the larger work
superficial
toward or at the body surface (opposite of deep)
superior
toward the upper end of the body or body structure (opposite of inferior)
support
examples and details that explain the topic of a paragraph; follows the topic sentence
supporting details
details that explain the main idea
sympathetic nerve
branch of the autonomic nervous system that is activated when a person is excited or scared
synapse
fluid-filled gap that connects the axon of one nerve cell with the cell body of another
T cell
lymphocyte that is responsible for cellular immunity
table of contents
listing of a publication's chapters, sections, or other organizational units; includes page numbers
take-home pay
money received after deductions are subtracted from the beginning salary
taxonomy
classification of organisms into universally accepted taxons; names reflect the organism's evolutionary heritage
technical writing
writing that passes along specific information or knowledge in a formal or standardized way
term
constant, variable, or product of a constant and variable
text features
formatting that serves a consistent purpose in a document; add meaning to the text that they modify, change the text's meaning, or add structure and clarity to the document
text structure
way of organizing text to better present thoughts or ideas; includes sequence, problem-solution, comparison-contrast, description, and cause-effect
themes
subjects that a written work frequently touches upon
third-person point of view
perspective in which the narrator is distanced from the story and tells it as an outsider; third-person pronouns such as he, she, or they
tissue
collection of cells in an organism that have a similar function and structure
topic
general subject matter covered by a writing
topic sentence
generally at or near the beginning of a paragraph; gives the topic or point of the paragraph and often explains that topic in relation in relation to the overall theme of the writing
trachea
airway that connects the larynx to the bronchial tubes; also known as the windpipe
transcription
process of cells copying the instruction from the DNA into the RNA
transition
smooth movement from one idea to the next, from one sentence to the next, or from one paragraph to the next; transition words may include additionally, finally, similarity, next, however, and furthermore
translation
process of protein reduction from messenger RNA
transverse section
cut made along a horizontal plane that divides the body into upper and lower regions; cross section
triple-point
temperature and pressure at which a substance will coexist as a solid, liquid, and gas
unsaturated hydrocarbons
a chemical molecule containing at least one double or triple bond
urinary system
helps maintain the water and electrolyte balance within the body; regulates the acid-base balance of the blood; removes all nitrogen-containing wastes from the body
vaccine
inactivated form of a pathogen that stimulates the body to produce antibodies for future protection
vacuole
basic storage unit of a cell that can hold verious compounds
valence electrons
electrons in the outermost shell of an atom
variable
unknown quantity in an expression or equation
veins
blood vessels that transport unoxygenated blood from the capillaries back to the heart
ventral body cavity
contains all the structures within the chest and abdomen; the diaphragm divides the ventral cavity into the thoracic cavity (superior to the diaphragm); below the diaphragm are the abdominal and pelvic cavities
verb
word that shows an action or state of being
verbal
word that is sometimes used as a verb but currently being used as another part of speech
vesicles
small membrane-bound sacs within the cytoplasm used to transport proteins or other substances in and out of a cell
villi
finger-like projections in the mucosa of the small intestine lining; produce a pleated appearance; each villus is supplied with blood and has lymphatic vessels for absorption
whole numbers
nonzero, positive integer (0, 1, 2, 3, 4, 5, 6, etc.)
word structure
way in which the parts of a word are arranged together
work
result of any change in energy
zygote
a one-celled organism resulting from the fertilization of an egg
density (g/ml)=
mas / volume (grams / milliliters)
volume (ml)=
length x width x height