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the natural resistances with which a person is born. It occurs because of a body's genetic make-up.
when the entire heart, both of the atria and ventricles, is relaxed.
an organelle that occurs in the cytoplasm of both plant and animal cells. It is made from stacks...
the loss of water vapour from the aerial parts of a plant through stomata or lenticels.
membrane-bound compartments inside chloroplasts and cyanobacteria. They are the site of the...
specialised proteins which catalyse chemical reactions and thereby speed up chemical reactions...