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animals that live socially or in colonies and perform certain tasks for the good of the colony as a whole.
variation due to the small differences in the genes that control each feature and characteristic...
(also called egestion or elimination) the process of passing faeces out through the anus.
(also called pith rays) sections of the medulla that occur between the vascular bundles.
the membrane that surrounds the nucleus. It is similar in structure and function to the cell...