EVOLUTION
HISTORICAL CONTEXT FOR EVOLUTIONARY THEORY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Natural selection eliminates the least fit organisms from the population.
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Members of the population compete for resources.
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Gene mutations add more diversity to the population.
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Those that have the best traits survive and reproduce.
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Detailed explanation-1: -So, the correct answer is ‘Mutation’
Detailed explanation-2: -There are four principles at work in evolution-variation, inheritance, selection and time. These are considered the components of the evolutionary mechanism of natural selection.
Detailed explanation-3: -Darwin proposed that species can change over time, that new species come from pre-existing species, and that all species share a common ancestor.
Detailed explanation-4: -Mutations are the source of new variation. Natural selection itself does not create new traits; it only changes the proportion of variation that is already present in the population. The repeated two-step interaction of these processes is what leads to the evolution of novel adaptive features.