Most People in Very Old Age Cannot Provide a Psychohistorical

question 37

True/False

Most people in very old age cannot provide a psychohistorical perspective because of their cognitive dysfunctions.

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Definitions:

Hybrid Sterility

A postzygotic reproductive isolating mechanism in which an interspecific hybrid cannot reproduce successfully.

Hybrid Breakdown

A postzygotic reproductive isolating mechanism in which, although an interspecific hybrid is fertile and produces a second (F2) generation, the F2 has defects that prevent it from successfully reproducing.

Microevolution

Evolutionary change within a species or small group of organisms, especially over a short period.

Hybrid Inviability

A postzygotic reproductive isolating mechanism in which the embryonic development of an interspecific hybrid is aborted.