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large startery, it carries oxygenated blood around the body.
an enzyme that catalyses (speeds up) the hydrolysis (breaking) of a chemical bond.
the clear colourless fluid that occurs in the spaces, such as the ventricles and central canal,...
damage caused to the vegetation when it is intensively fed upon by grazing animals and does not...
the movement of molecules across a membrane against the concentration gradient, from an area of...
a thin, flexible layer of the plant cell wall inside the middle lamella. It consists mainly of...