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ontogeny

n. the biological origin and development of an individual organism from fertilization of the egg cell until death. Also called ontogenesis. Compare phylogeny. See also recapitulation theory. —ontogenetic adj.

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Psychology term of the day

December 21st 2024

biotransport

biotransport

n. the transportation of substances within cells or into and out of cells across biological membranes. See active transport; ion pump; passive transport.