Part one of term paper
, or water fleas, are small (0.2-6 mm) aquatic crustaceans forming one of the orders of the Branchiopoda. Most inhabit quiet fresh waters. Along with the rotifers and copepods they account for most of the freshwater zooplankton yet most of them are benthic. Most are filter feeders that consume phytoplankton which they remove from the water u ...

Part two of term paper
... and not much larger in males. are parthenogenic and for most of the year populations consist entirely of females which reproduce asexually. As winter (or sometimes spring) approaches males appear and sexual reproduction occurs typically involving the production of resistant, over-wintering eggs. Such eggs are usually enclosed in a purselike ephippium that rests in the sediment at the bottom of the lake or pond until spring at which time the eggs hatch. 1. Daphnia magna. Take a small culture dish t ...