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plants that are adapted to live in hot, dry conditions.
the process whereby substances dissolved in the blood (such as H+ ions, nitrogenous waste and...
all the different ecosystems with their numerous and varied organisms.
a mixture of enzymes and other substances secreted by the exocrine cells of the pancreas.
an injection of a weakened or dead pathogen into the body to build up immunity against a disease...
a pore in nuclear membrane that enables macromolecules to enter and leave the nucleus.