COMPARISONS. 



With columns headed respectively Amoeba and Para- 

 mcecium answer the following questions: 



(1) Does the body undergo marked changes of shape? 



(2) Can you distinguish permanent regions? 



(3) Are the processes from the general body-surface 

 temporary or permanent? 



(4) Are ectosarc and entosarc distinguishable? 



(5) Is there any definite place for taking food? 



(6) Is there a cuticle? 



(7) Is there a contractile vacuole? 



(8) Can you find a nucleus? or more than one? 



(9) If a cell be defined as a mass of protoplasm with a 

 nucleus, are these forms unicellular or multicellular? 



Read the section on the Protozoa (pp. 144 to 153). 



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