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H
- Hardy-Weinberg Equilibrium
- The principle that states that when Ne = N, in the absence of selection or mutation, gene frequencies will achieve equilibrium after one generation; also called Principle of Law.
- heredity
- The biological similarity of offspring and parents. (adj. heritable)
- heterodont
- Having more than one kind of hinge teeth.
- hinge
- Collective term for the dorsal border of the articulated valves, including the ligament, hinge teeth, and other structures that function to permanently unite the two valves.
- histology
- The study of cells and tissues at the microscopic level.
- holoplanktonic
- Living as plankton through all stages of a life cycle.
- homologous
- Having the same structure and origin, although current function might differ.
- hypothesis
- An “educated guess,” based on evidence, concerning how or why a phenomenon occurs; see also theory, law.