Name: 
 

Living Things / Animals



Short Answer
 

1. 

Directions: Use the illustration below to answer questions 1 through 3.
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living_things_anima_files/i0020001.jpg
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How are sponges like plants?
Why are sponges classified as animals?
 

2. 

What role does water play in sponge reproduction?
 

3. 

What purpose, in addition to providing body support, do the spikes serve?
 

4. 

Directions: Use the illustration below to answer questions 4 through 6.
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What are the five groups of arthropods?
 

5. 

How do spiders differ from grasshoppers?
 

6. 

Why do arthropods molt?
 

7. 

Directions: Use the following illustration to answer questions 7 through 9.
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What were the first vertebrates, and when did they appear on earth?
 

8. 

What are the functions of an endoskeleton?
 

9. 

What adaptations do endotherms have for maintaining body temperature?
 

10. 

Directions: Use the following illustration to answer questions 10 through 12.
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What two changes do most amphibians undergo in order to transition from a water to a land environment?
 

11. 

In addition to breathing with lungs, how else do adult amphibians obtain oxygen and get rid of carbon dioxide?
 

12. 

How do amphibians differ from reptiles?
 



 
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