10 



PROTOZOA 



3. Volvox. (a) Alive and rotating in the water, (b) Removed to slide and slightly compressed 

 by coverslip, supported on strips of paper, (c) Killed with iodine. 



Individuals of colony; connecting threads; flagella; parthenogonidia ; female reproductive cell 

 (macrogonidium) ; male reproductive cell dividing into microgonidia. 



