QUESTIONS. 



BRANCH I. I. What is a cell? 2. Mention some differences be- 

 tween animals and plants. 3. What are the characteristics of the sim- 

 plest animals ? 4. Describe a moner ; its method of eating. 5. What 

 is a nucleus ? 6. Define a contracting vesicle. 7. Define an amoeba. 

 8. Describe a shelled amoeba. 9. What is a radiolarian ? 10. What 

 great work do these forms accomplish ? n. Define a gregarine. 12. 

 In what are they remarkable ? 13. Define the infusorians. 14. How 

 do they differ from the preceding forms? 15. W T hat is a cilium? 16. 

 Define a monad. 17. What is a compound monad ? 18. How does 

 the acineta differ from the monad ? 19. What are the characteristics 

 of the suctorians? 20. Describe the bell animalcules. 21. What is 

 meant by budding? 



BRANCH II. I. Describe the structure of a sponge. 2. What are 

 spicules ? 3. How does a sponge eat ? 4. Describe the different uses 

 of the large and small pores. 5. Explain the development of the 

 sponge. 6. Define a lime-sponge. 7. Give examples of other kinds. 

 8. How do they benefit man ? 



BRANCH III. i. What are the general characteristics of ccelente' 

 rates ? 2. Define a hydra ; show the use of its arms. 3. What is a 

 lasso-cell ? 4. Describe a lime-secreting hydroid. 5. What is meant 

 by alternate generations ? 6. Give an example. 7. How do the dis- 

 cophores differ from hydroid medusce ? 8. Where are the eyes in a jelly- 

 fish? 9. Describe the development of an aurelia. 10. Explain the use 

 of the water vascular system, n. Describe the physalia. 12. How does 

 it secure prey ? 13. Define a sea-anemone. 14. What is a septa? 15. 

 Describe the development of sea-anemones. 16. How do corals differ 

 from anemones ? 17. About how fast does coral grow ? 18. Are corals 

 found out of the tropics ? Give example. 19. W T hat is a coral reef, and 

 how formed? 20. What is an atoll? 21. Of what value is coral to 

 man ? Anemones ? 22. What is a gorgonia ? 23. Describe a sea-fan. 

 24. What are the general characteristics of the comb-bearers? 



