- Life Sciences
energy resources such as coal and oil, which are being used up much more quickly than they can ever be replaced.
the main supporting cells of neurons in the peripheral nervous system (PNS).
(also called renal failure) the condition in which the kidneys are no longer able to function...
the membrane that surrounds the nucleus. It is similar in structure and function to the cell...
a fine thread-like structure. In plants: the stalk of the male sexual organ.