Lm Of A Freshwater Polyp, Hydra Sp
by Eric Grave
Title
Lm Of A Freshwater Polyp, Hydra Sp
Artist
Eric Grave
Medium
Photograph - Photograph
Description
Hydra polyp. Light micrograph of a freshwater coelenterate polyp, Hydra sp., asexually reproducing by budding off a daughter polyp. The anterior of the creature consists of a mouth surrounded by tentacles. These capture food such as small water fleas and algal cells which float past on the current. They are then passed to the mouth; waste is also excreted through the mouth. In good feeding conditions Hydra sp. reproduce asexually, but sexually reproduce by releasing sexual cells into the water for fertilization when conditions are poor. Magnification x13 at 35mm size.
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February 19th, 2013
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