An organism that makes its own food is called a ____________________.

Autotrophs

Organism that gets energy by consuming other organisms are called _______________.

Heterotroph

An organism's ability to to maintain stable internal conditions is called _____________________.

Homeostasis

____________________ is the scientific study of how organisms are classified and named.

Taxonomy

If two species have very similar structures, they may have evolved from a _______________________.

Common Ancestor

A __________________ is an organism that lives on or in a host and causes it harm.

Parasite

A virus is a tiny particle that enters and then reproduces inside a living _______.

Cell

Scientists use bacteria to make ______________.

Medicine

___________, such as those that grow on fruit and stale bread, are a type of fungus.

Mold

The organism that a virus enters and multiples inside of is called a ___________.

Host

The energy for photosynthesis comes from the _______.

Sun

The young leaves of some __________ are known as fiddleheads.

Ferns

A ________________ is a seed plant that produces naked seeds.

Gymnosperm

________________ are plants that produce seeds that are enclosed in fruits.

Angiosperm

____________________ are plants that are low growing, have thin cell walls, and do not have roots for absorbing water from the ground.

Nonvascular

A structure that contains a young plant inside a protective covering is called a _______.

Seed

Three stimuli that plants react to are touch, gravity and ________.

Light

A plant hormone that speeds up the rate in which a cells grows is called _______.

Auxin

Plants play a role in the environment by preventing soil from washing away, providing habitats and ______ for animals.

Food

_____________________ is the number of hours of darkness that determines whether or not a plant will flower.

Critical Night Length

An animal without a backbone is called an _______________.

Invertebrate

Animals with a backbone are called __________________.

Vertebrate

__________ is a group of similar cells that perform a specific function.

Tissue

An ________ is made up of different tissues.

Organ

An animal has _______________ if many imaginary lines can be drawn through a central point to divide it into two mirror images.

Radial Symmetry

An animal has ___________________ if only one line of symmetry can be drawn to divide it into halves that are mirror images.

Bilateral Symmetry

An organism with an ________________ has an outer skeleton.

Exoskeleton

__________________ are invertebrates that have hard outer coverings, segmented bodies and pairs of jointed appendages.

Arthropods

A _______________ is a framework that shapes and supports an animal.

Skeleton

A brain's three main functions are to receive information, interpret information and control an animals ____________.

Response

A group of organisms that can reproduce and produce offspring.

Species

The process of grouping things based on their similarities.

Classification

A tiny, nonliving particle that enters and then reproduces inside a living cell.

Virus

An organism that lives on or in a host and causes it harm.

Parasite

Tiny single-celled organisms that live almost everywhere.

Bacteria

Organisms that break down large, complex chemicals in dead organisms into small, simple chemicals.

Decomposers

A eukaryote that cannot be classified as an animal, plant, or fungus.

Protist

A tiny cell that is able to grow into a new organism.

Spore

The leaf of a fern.

Frond

Eukaryotes that have cell walls, feed by absorbing their food.

Fungi

A leaflike structure that protects a flower bud.

Sepal

Rounded ip that protects a growing root.

Root Cap

A plant's growth response toward or away from a stimulus.

Tropism

An invertebrate with an internal skeleton and fluid-filled tubes.

Enchinoderm

A vertebrate that has skin covered by hair or fur, and a four chambered heart.

Mammal

Animals that might have fins and flippers live in the _________.

Water

Webbed feet are most useful for an animal to move in __________.

Water

Earthworms, snails, and crabs eat _____________.

Decaying Material

A herbivore eats __________.

Plants

An omnivore eats both plants and ______________.

Animals

A carnivore only eats ______________.

Animals

Fungi need a _______ & _______ place in which to grow.

Moist & Warm

During photosynthesis, plants produce ____________.

Oxygen

The green pigment found in plant cells is called _______________.

Chlorophyll

The main function of animals is to get _______ and ___________.

Food & Oxygen