THE TRANSITION TO LAND 403 



REVIEW QUESTIONS 



1. Describe changes that take place in larval amphibians that adapt them for 

 life on the land. 



2. How may frog and toad eggs be distinguished from one another? 



3. Name the important parts of the reptile egg that enable it to develop on the 

 land. 



4. Tell how climate might have played a part in the decline of the reptiles and 

 the rise of the mammals. 



5. What body structures form the "shell" of the turtle? 



6. Why is the glass snake thought of as a snake when it is a lizard? 



7. Name the easily recognized characteristics of the pit viper head. 



8. How is the rattle of the rattlesnake formed? 



9. Compare the fangs of the cobra family with the pit viper family. 



10. List some of the snake superstitions that you have heard. 



11. How can the Colorado axolotl be made to undergo metamorphosis? 



12. Compare fertilization in the frog and the salamander. 



13. How could the mud eel have lost its hind legs in the process of natural 

 selection ? 



14. How far can a snake strike? 



15. Compare the poison of the pit vipers with that of the coral snake. 



16. Tell how the Gila monster injects its poison. 



17. Describe the proper method of first-aid treatment for snake bite. 



