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Why Is There No Universal Definition of the Family

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Why is there no universal definition of the family?


Definitions:

Cambrian Period

A geological era around 541 million years ago, marked by a rapid diversification of life forms and the appearance of most major groups of animals in the fossil record.

Great Chain of Being

A hierarchical structure of all matter and life, believed in medieval Christianity to have been decreed by God.

No Apparent Function

Describes aspects of organisms that do not show a clear purpose or role.

Fossil Records

The total number of fossils discovered and the information they provide about past life forms on Earth.

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