r 6 ELEMENTARY ZOOLOGY. 



2. The differences between pond life and brook life. 



3. Do you find any water forms that seem at home 

 on the land? That do not? Any land forms that seem 

 comfortable in the water? 



4. Do you find any water-loving forms that seem similar 

 to animals that prefer the land? 



5. In what general respects does the animal life of 

 autumn differ from that of spring and early summer? 



6. What types of animals do you find adopting a dis- 

 tinct boring or burrowing habit? Into what kinds of 

 materials do you find them burrowing? What seems 

 to be the purpose of this mode of life, in the various 

 cases? 



7. Have you been able to discover any clear case of 

 mutual adjustment in the habits of any two species of 

 wild animals? 



8. Any such interrelation between any type of animals 

 and any species of plants? 



9. To what extent do any of the kinds of animals that 

 you have found appear social? Just what do you mean 

 by "social," in this answer? 



10. To what extent do the various animals seem active? 

 Do their activities seem aimless? Justify your con- 

 clusion. Are the activities constant? 



11. What group of animals do you find represented 

 in the greatest numbers in your collecting and obser- 

 vations? What do you take this to mean? 



12. Among the wild animals you have actually seen, 

 how many are known to you to be important to human 

 interests? Which are helpful? Which hurtful? Which 

 of these affect man directly? Which indirectly? 



13. Classify all the domestic animals that you know. 

 Write them in smaller groups according to their like- 



