EVOLUTION
DARWIN’S THEORY OF NATURAL SELECTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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unrelated species living in different locations
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the natural variation found in all populations
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the struggle for existence undergone by all living things
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changes in the inherited characteristics of a population over time
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Detailed explanation-1: -Evolution is the change in inherited characteristics or traits in a population of organisms over many generations. The mechanism that best explains evolution is a phenomenon known as natural selection.
Detailed explanation-2: -So, the correct answer is ‘Individuals with the most favorable traits survive and reproduce’
Detailed explanation-3: -Natural selection is sometimes summed up as “survival of the fittest”. This is true but can be misleading. The word “fittest” does not necessarily refer to physical fitness. Rather, it means how well-suited an organism is to its environment and lifestyle.
Detailed explanation-4: -Which statement describes an effect of natural selection on a species? It increases competition between populations that occupy different niches, increasing the chance of extinction of the less-adapted species.
Detailed explanation-5: -Natural selection is a mechanism of evolution. Organisms that are more adapted to their environment are more likely to survive and pass on the genes that aided their success. This process causes species to change and diverge over time.