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a system of support in soft-bodied animals, which relies on pressure of fluids in the body cavity.
specialised proteins which catalyse chemical reactions and thereby speed up chemical reactions...
mass extinction event of 65 million years ago, in which about 85% of all species on Earth died...
part of cellular respiration: a cyclical series of reactions in which the pyruvic acid formed in...
the condition in which a persons' normal capacity to think or act is affected due to the...