31) Turtles that live on the land are usually called
Tortoises
8) Fish of the class Osteichthyes are
Bony fish
20) A thin covering that keeps the frog’s eyeball moist while the organism is out of the water is the
Nictitating membrane
29) Hemotoxin is a venom that affects
Blood vessels and blood cells
6) An animal that eats both plant and animal material is
Omnivorous
40) The dorsal shell of a turtle
Carapace
10) A bony fish can move to different depths by adjusting the amount of gas in its
Swim bladder
35) The stuporlike condition of the frog during winter
Hibernation
5) The Jacobson’s organs in snakes are sensitive to
Chemicals and odor
34) The body temperature varying with the temperature of the environment
Ectothermic
1) The vertebral column, ribs, and skull of vertebrates form the
Axial skeleton
2) Which of the following does not belong with the other three?
Lamprey
9) The digestive, reproductive, and excretory systems of the frog open into a common chamber called the
Cloaca
3) Pit vipers get their name from
The shape of their heat-sensing organs
19) Animals that lay eggs are called
Oviparous
27) A feature that makes it possible for most reptiles to live their entire life on land is their
Amniotic eggs
17) A fish’s keenest sense is probably the
Olfactory sense
14) Respiration in amphibians never occurs by means of
Spiracles
12) The locomotion of snakes that relies most on the use of scutes is
Rectilinear
11) A form of camouflage in which the upper half of an aquatic animal is darker than its lower half is
Countershading
4) One characteristic of all vertebrates is a(n)
Closed circulatory system
21) The shark is not in the same class as the perch primarily because of the shark’s
Skeleton
16) In amphibians, estivation is a time of
Summer inactivity
38) A sac for respiration and excretion found in amniotic eggs
Allantois
37) Describes an animal that gives birth to young already hatched without the use of a placenta
Ovoviviparous