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molecules made of a phosphate head and a lipid (fat) tail.
simple epithelium with elongated, cells that lines the stomach, small intestine, urethra, vas...
is the gaining of a plant's ability to flower or germinate in the spring after exposure to the...
the spread of cancer cells from the original (primary) malignant tumour to other parts of the...
the part of the cell that controls all the activities of the cell and plays an important role in...
the loss of water vapour from the aerial parts of a plant through stomata or lenticels.