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How does Darwin’s theory of Natural Selection explain the appearance of new forms of life on earth? |
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Answer» Darwinian theory of evolution ▪ Charles Darwin, based on his observations during a sea voyage around the world in the ship H.M.S. Beagle, concluded the following: • Varying degrees of similarities can be observed between existing life forms and those that existed millions of years ago. • There has been gradual evolution of life forms with new forms arising at different periods of history. • Any population has built-in variations in characteristics which adapt it better to environment. • The characteristics which enable some populations or individuals to survive better in natural conditions (climate, food, physical factors) would out-breed others (Survival of the fittest). • Those populations which are better fit (reproductively fit) in an environment will be selected by nature and will survive more (Natural selection). • Adaptability is inherited and fitness is the end result of ability to adapt and get selected by nature. |
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