56 GENERAL BIOLOGY 



of food particles in the body? Where is the food digested? 

 How is it distributed ? 



3. Sensation. Does the amoeba ever appear to feel an 

 object against which it presses? Does it avoid obstacles? 

 Tap the cover with a needle, are there indications that the 

 animal has the sense of touch? If the slide is placed upon 

 a warm stage it may be possible to determine whether the 

 animal responds to temperature. If heated to 40 C. the 

 amoeba will be killed. 



4. Reproduction. Occasionally one meets some of the 

 stages that the animal undergoes in its life history, such as 

 encysted specimens and specimens undergoing division. 

 If any of these stages are found examine them with care 

 and make drawings of them. 



Various kinds, or species, of amoebae may be found which 

 may differ in number, shape and position of the pseudopodia; 

 in size and abundance of granules in the entoplasm; and 

 in the presence of a shell about the animal. 



