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{%type%} Definitions

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n. - Introduction during embryonic development of characters or structure not present in the earlier evolutionary history of the strain or species (as addition of the placenta in mammalian evolution).

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Usage examples (2)
  • In other ways also, it became clear that coenogenesis could not suffice to explain deviations from the rule.
  • As genetic data accumulated, coenogenesis became less acceptable as an explanation of deviations from strict recapitulation, since it implied the inheritance of acquired...
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