Exam 2
Hyphae are
haploid
Fungi reproduce sexually
when conditions are stressful
The skin and central nervous system develop from
ectoderm
In deuterostomes the blastopore develops into the
anus
Which group has indeterminate cleavage?
deuterostomes
Jaws first occurred in which extant group of fishes?
Chondrichthyans
Which group's members have had both lungs and gills during their adult lives?
amphibians
What species are amniotes?
Reptiles, birds, and mammals
Why is the amniotic egg considered an important evolutionary breakthrough?
It allows deposition of eggs in a terrestrial environment
Which characteristic added most to vertebrate success in relatively dry environments?
The shelled, amniotic egg
Which of the following is most closely related to crocodiles?
birds
What are the only extant animals that descended directly from dinosaurs?
birds
A maggot is more correctly called a
larva
Internal fertilization, leathery amniotic egg, and skin that resists drying are characteristics of
non-bird reptiles
This group can use their skin for significant gas exchange
amphibians
Which of the following is an ecdysozoan?
nematode worms
Lungs and the digestive system develop from
endoderm
This group has ONE pair of antennae
insects
This group has one pair of legs per body segment
Chilopoda
Which fish is most closely related to tetrapods?
lungfish
What are the most abundant and diverse (in terms of number of species) of the extant vertebrates?
ray-finned fishes
What is the single unique characteristic that distinguishes extant (not extinct) birds from other extant vertebrates?
feathers
Which of the following traits evolved first in hominids?
bipedalism
These hominids lived in Europe along with Homo sapiens
Neanderthals
What is the most specific group that includes both the Old World monkeys and the New World monkeys?
anthropoids
This is the first group to appear in the fossil record that can truly be called a vertebrate
lampreys
All chordates are vertebrates
false
all vertebrates are chordates
true
insects have __________pair(s) of wings
two
salamanders are
amphibians
In order for the four-chambered hearts of birds and mammals to be homologous, which other organisms would have to have had four-chambered hearts?
stem (very early) reptiles
Vertebrates and tunicates (sea squirts, Urochordata) share
a notochord and a dorsal, hollow nerve cord
Some animals that lived 530 mya resembled lancelets but had a brain and a skull. These animals may represent
early craniates
As hominins diverged from other primates, which of the following appeared first?
bidepal locomotion
I, like Professor Stevens, am an African American because my ancestors evolved in Africa
TRUE
Barnacles are
crustaceans
A fungal pathogen is just one of several causes for the alarming decline in which group of vertebrates
amphibians
Chordates have a _____________ nerve cord
dorsal
Lungs and the digestive system evolve from which layer?
endoderm
Animals that have eggs, but the eggs develop inside their mother (as in some sharks), and the young hatch from the egg while it is still inside the mother are called
ovoviviparous
One of these things is not an archosaur. Who is it?
turtle
Which group of mammals gives birth to live young that are very immature and spend most of their early development attached to a nipple drinking milk
marsupials
At one stage of early development, you were shaped like a hollow ball. This hollow ball shaped stage is called a
blastula
This thing belongs to which group?
sarcopterygii
The fungus body, such as a mushroom, is called a ____________
hyphae
This type of fungus is killing our beloved frogs _________________
chytrid
Deuterostomes have this type of cleavage_____________
indeterminate
Fungi have cell walls made of _______________
chitin
Chelicerata have _________ pairs of antennae
zero
The sessile stage of a jellyfish is called ______________
polyp
Molting, as when a caterpillar sheds its exoskeleton, is known as____________
ecdysis
A cocoon that larvae form before complete metamorphosis is better known as a_________
pupa
This is one feature birds and dinosaurs share_____________
feathers (many more possible answers)
Birds closest relatives were____________
dinosaurs
Egg laying mammals are called
monotremes
Kangaroos have a tripartite (3 part)______________
vagina
Sharks have skeletons made of ____________
Cartilage
Amphibian skin is ______________
not waterproof
Fish and other vertebrates that have jaws are called_____________
gnathosomes
__________________is the weedkiller that Tyrone Hayes found to chemically castrate frogs
Atrazine
The______________surrounds the embryo and holds water in reptiles, birds, and mammals
amniotic sac
The ___________is the membrane that stores waste in embryonic birds and reptiles
allantois