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Chapter 29<br />

Name Date Class<br />

1<br />

Why was the shelled amniotic egg an<br />

important advance for reptiles<br />

A It enabled them to lay protected eggs in<br />

water.<br />

B It enabled them to lay more eggs.<br />

C It meant they were not dependent on water<br />

to lay eggs.<br />

D It meant that they could lay eggs and ignore<br />

them.<br />

Use the diagram below to answer questions 2 and 3.<br />

Leathery<br />

shell<br />

Amnion<br />

Embryo<br />

5<br />

What adaptation keeps reptiles from losing<br />

internal fluids<br />

A dry, scaly skin<br />

B kidneys that filter blood<br />

C skin that grows with the animal<br />

D the ability to control body temperature<br />

6<br />

What do crocodiles and alligators have in<br />

common with birds and mammals but not<br />

with other reptiles<br />

A a four-chambered heart<br />

B ability to control body temperature<br />

C amniotic egg<br />

D Jacobson’s organ<br />

Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.<br />

Chorion<br />

Yolk sac<br />

Allantois<br />

2<br />

What in the diagram contains nutrients for the<br />

embryo<br />

A allantois<br />

B amnion<br />

C chorion<br />

D yolk sac<br />

3<br />

Which membrane allows oxygen to enter while<br />

keeping fluids in the egg<br />

A allantois<br />

B amnion<br />

C chorion<br />

D yolk sac<br />

4<br />

Which animal would depend on the surrounding<br />

environment to regulate its body temperature<br />

A cardinal<br />

B gerbil<br />

C lizard<br />

D house cat<br />

7<br />

Amniotes are hypothesized to have separated<br />

into three groups based on .<br />

A body scales<br />

B skull structure<br />

C molting abilities<br />

D hip structure<br />

8<br />

What do birds have that distinguishes them<br />

from other organisms<br />

A four-chambered heart<br />

B wings<br />

C amniotic eggs<br />

D feathers<br />

9<br />

Endothermy, feathers, and which adaptation<br />

equip a bird for flight<br />

A solid bone structure<br />

B maintaining a low body temperature<br />

C light-weight bone structure<br />

D urinary bladder<br />

STANDARDIZED TEST PRACTICE CHAPTER 29 57

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