SSC MTS EXAM

Detailed explanation-1: -How do organisms evolve? Individual organisms don’t evolve. 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.

Detailed explanation-2: -Evolution, in this context, is both a fact and a theory. It is an incontrovertible fact that organisms have changed, or evolved, during the history of life on Earth. And biologists have identified and investigated mechanisms that can explain the major patterns of change."

Detailed explanation-3: -Scientists overwhelmingly agree that humans evolved over time, and most Americans are aware that this is the case. Among scientists connected to the American Association for the Advancement of Science, 98% say they believe humans evolved over time.

Detailed explanation-4: -Natural selection acts on populations. Individuals do not evolve in genetic evolutionary terms. Individuals may mutate, but natural selection acts by shifting the characteristics of the population as a whole.