62 



The Living Things of the Earth unit i 



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Fig. 88 Vorticella is one of the vwst interesting 

 of the protozoa. On the riiii of its open nioiith 

 is ct row of cilia. Vorticella is anchored by a 

 stalk. (HUGH spencer) 



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Fig. 89 Three aiuebae photographed through a 

 7/ncroscope. Can you see food vacuoles in the 

 lowest one? The living material streams in all 

 directions, (general biological supply) 



l"iG. 90 Living Paramecium photographed 

 through a microscope. The outline is blurred by 

 the moveme7it of the cilia. Can you see the 

 groove leading to the mouth? (hugh spencer) 



Front end 



Contractile vocuole 



Macronucleus 

 Mouth 



Cilia 



Fig. 91 This drawing of a Paramecium shows 

 the groove through which food enters. How 

 does the food get to this spot? What does a 

 parcrmecium eat? How does it move? 



