EVOLUTION
MODERN THEORY OF EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Species vary around the world
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Species vary locally
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Species don’t vary over time
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Species vary over time
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Detailed explanation-1: -Darwin proposed that species can change over time, that new species come from pre-existing species, and that all species share a common ancestor. In this model, each species has its own unique set of heritable (genetic) differences from the common ancestor, which have accumulated gradually over very long time periods.
Detailed explanation-2: -Darwin’s theory of evolution by natural selection rests on three observations. The first is that members of a species vary. The second is that offspring inherit characteristics from their parents. And the third is that species are adapted to their natural environments.
Detailed explanation-3: -So, the correct option is ‘Population do not grow in geometrical progression’.
Detailed explanation-4: -The four key points of Darwin’s Theory of Evolution are: individuals of a species are not identical; traits are passed from generation to generation; more offspring are born than can survive; and only the survivors of the competition for resources will reproduce.