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a fine thread-like structure. In plants: the stalk of the male sexual organ.
a tail-like structure that some prokaryotic and eukaryotic cells use for movement.
this muscle 'closes' or bends the joint when it contracts (so the angle between the bones...
states that the cell membrane consists of a double layer of phospholipids in association with...
a pattern of abnormalities found in babies born to mothers who drank excessive amounts of...
an abnormal response of the immune system to the protein in certain foods.
a naturally occurring sequence of organisms from the various trophic levels that feed on each...