OBJECTIVE LIFE SCIENCE
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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is a trait or an organ that appears similar in two unrelated organisms; evolved to adapt to similar environments
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a structure that an organism has that is no longer useful to it, but that they have this structure because a common ancestor to that organism found it useful
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the inability of a species to breed successfully with related species due to geographical, behavioral, physiological, or genetic barriers or differences
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change over time; process by which modern organisms have descended from ancient organisms (decent with modification)
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Detailed explanation-1: -Darwin thought of evolution as “descent with modification, ‘’ a process in which species change and give rise to new species over many generations. He proposed that the evolutionary history of life forms a branching tree with many levels, in which all species can be traced back to an ancient common ancestor.
Detailed explanation-2: -Evolution is a process that results in changes in the genetic material of a population over time. Evolution reflects the adaptations of organisms to their changing environments and can result in altered genes, novel traits, and new species.
Detailed explanation-3: -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-4: -Evolution: Evolution consists of changes in the heritable traits of a population of organisms as successive generations replace one another.