EVOLUTION
MODERN THEORY OF EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Gradual genetic changes in certain organisms produce a range of similar looking organisms.
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An unchanged environment has led to successive generations of identical organisms.
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New species of organisms have adapted to fill niches in the environment.
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The environment has adapted niche to support new species of organisms.
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Detailed explanation-1: -Natural selection explains how genetic traits of a species may change over time. This may lead to speciation, the formation of a distinct new species.
Detailed explanation-2: -Changing environmental conditions influence which organisms survive and reproduce, which, in turn, can lead to evolutionary changes in populations.
Detailed explanation-3: -This happens by the process of natural selection. By natural selection, the nature of the species gradually changes to become adapted to the niche. If a species becomes very well adapted to its environment, and if the environment does not change, species can exist for a very long time before they become extinct.
Detailed explanation-4: -Evolution is the process by which species adapt over time in response to their changing environment.