142 



UNIT AND DIVISION OF LABOR 



Drawings (Optional) 



1. The paramcecium as a cell. Label everything shown. 



2. Showing the different methods of reproduction. 



c. In its Relations to Man 



Observations. Fill in the following tabulation as far as 

 possible. See references below. 



DISEASE 



MEANS OP TRANSMISSION 



WHERE FOUND 



How PREVENT 



Malaria . ."> . 

 Smallpox . . . 

 Sleeping Sickness . 

 Spotted Fever . 

 Chronic Dysentery 

 Rabies . . . . 

 Measles .... 

 Chicken Pox . . 

 Texas Fever 

 Kala Azar . v . , 

 Nagana .... 

 Surra . 



Questions 



1. What is the meaning of the word Protozoa ? 



2. What is a cell ? 



3. What is protoplasm ? Nucleus ? Cell wall ? 



4. Where are Protozoa found ? 



5. How do Protozoa reproduce themselves ? 



6. Why are Protozoa so universally distributed ? 



7. How do Protozoa get rid of waste ? How eat ? How 

 breathe ? 



8. What is meant by encysting ? The purpose of encyst- 

 ing? 



9. What is an amoeba ? How does it move, eat, reproduce, 

 and get rid of waste ? 



