Charles Darwin's Theory of Evolution by Natural Selection,as Presented in His

question 22

Multiple Choice

Charles Darwin's theory of evolution by natural selection,as presented in his The Origin of Species,presupposed the existence of

• A) variable psychological characteristics in human beings.
• B) several fixed groups of species.
• C) inheritable small individual differences.
• D) genes as hereditary units.

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Definitions:

Fruit Flies

Small flies belonging to the family Drosophilidae, often used in genetic research due to their short life cycles and simple genetic makeup.

Generations

Groups of individuals, most often in a society, born and living about the same time, sharing similar cultural experiences or historical events.

Homo Sapiens

The scientific name for modern humans, the only extant species of the genus Homo.

Evolution

The process by which different kinds of living organisms are thought to have developed and diversified from earlier forms during the history of the earth.