Biology: The Dynamics of Life, California Edition

Section 1: Reptiles

Reptiles

1.
Which part of an amniotic egg supplies the embryo with food?
A)the chorion
B)the allantois
C)the amnion
D)the yolk
2.
Which of these describes a difference between reptiles and amphibians?
A)All reptiles have four-chambered hearts while all amphibians have three-chambered hearts.
B)Reptile eggs lack a protective membrane while amphibian eggs are amniotic eggs.
C)Reptile skin is dry and thick while amphibian skin is moist and thin.
D)Reptiles lay their eggs in the water while amphibians lay their eggs on land.
3.
Because they rely on external heat sources to keep their body temperatures regulated, reptiles are __________.
A)hermaphrodites
B)ectotherms
C)omnivores
D)unicellular
4.
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Look at the snake. What part of its sensory system is this?
A)egg tooth
B)Jacobson's organ
C)constrictors
D)allantois
5.
What does a reptile use to help it hatch from an egg?
A)yolk
B)egg tooth
C)Jacobson's organ
D)scales
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