Spirostomum is one of the largest of protozoa and almost big enough to see with the naked eye.
Preserved lumbricus segmented earthworms. Carefully straightened, each with a clitellum. 9"-12" in l...
Paramecium Multimicronucleatum are characterized by a single macronucleus and 3 or 4 micronuclei.
Hydra develops from an outgrowth or bud due to cell division at one particular site.
Separate culture of one hydra and daphnia (hydra food).