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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Populations or groups of individuals of the same species evolve.
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Individuals also evolve over time.
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Both populations and individuals evolve over time.
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Populations or individuals do not evolve over time.
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Detailed explanation-1: -Populations evolve. Because individuals in a population vary, some in the population are better able to survive and reproduce given a particular set of environmental conditions. These individuals generally survive and produce more offspring, thus passing their advantageous traits on to the next generation.
Detailed explanation-2: -Evolution is important because it explains how life developed on Earth and how different species are connected. The evolutionary linkages aid in the addressing of biological challenges, as well as the diversity of life.
Detailed explanation-3: -Populations evolve, not individuals. In order to understand evolution, it is necessary to view populations as a collection of individuals, each harboring a different set of traits. A single organism is never typical of an entire population unless there is no variation within that population.
Detailed explanation-4: -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.
Detailed explanation-5: -The process of evolution occurs only in populations and not in individuals. A single individual cannot evolve alone; evolution is the process of changing the gene frequencies within a gene pool.