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an enzyme that catalyses (speeds up) the hydrolysis (breaking) of a chemical bond.
(also called autotrophic organisms) organisms that produce their own organic food, mainly...
the factor that changes in an investigation and is not under the control of the investigator....
small fluid-filled sacs that store, transport, or digest cellular products and waste.
the branch of the renal artery which carries blood to the nephron, and branches to form the...