Fossils from the Burgess Shale Date Back to Approximately

question 23

Multiple Choice

Fossils from the Burgess Shale date back to approximately

• A)50 million years ago.
• B)130 million years ago.
• C)320 million years ago.
• D)410 million years ago.
• E)540 million years ago.

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Definitions:

Homogamy

The practice of marrying or forming relationships with individuals who have similar social, cultural, or personal characteristics.

Polygamy

A marital practice in which an individual has more than one spouse simultaneously.

Endogamy

The practice of marrying within a specific ethnic group, class, or social group, rejecting those from others.

Monogamy

The practice of having only one spouse at a time.