GENETICS AND EVOLUTION
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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it’s random
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because a species is facing a problem
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When someone studies about it
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Because a species is very intelligent
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Detailed explanation-1: -Natural selection is considered the main mechanism that causes populations to evolve. However, there are several other mechanisms of evolution, including mutation, genetic drift, and gene flow.
Detailed explanation-2: -A common objection to evolution is that it is simply too unlikely for life, in its complexity and apparent “design", to have arisen “by chance".
Detailed explanation-3: -For that reason, the evolution of one species influences the evolution of species with which it coexists by changing the natural selection pressures those species face. The classic examples of this sort of evolution, called coevolution, are predator-prey and host-parasite relationships.
Detailed explanation-4: -When conditions change, some species possess adaptations that allow them to survive and reproduce, while others do not. If the environment changes slowly enough, species will sometimes evolve the necessary adaptations, over many generations.