LIFE SCIENCE

Detailed explanation-1: -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: -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.

Detailed explanation-3: -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-4: -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-5: -Scientific understanding requires both facts and theories that can explain those facts in a coherent manner. Evolution, in this context, is both a fact and a theory.