Define evolution and write about darwin's theory of evolution
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Evolution is the cumulative changes that occur in a population over time. It is the result of change in the genetic make up of the organism due to mutations and other sources of variation. The favourable mutations are accepted by nature and provide the organism an adaptive advantage. Evolution ultimately result into speciation.
Darwin and Wallace proposed that natural selection is the mechanism by which new species arise from pre existing ones. Natural selection states that there is "struggle for existence" within a population and variation exists within all population. The continuous competition between individuals for environmental resources creates a 'struggle for existence' and this struggle makes sure that certain organisms would fail to survive or reproduce. This would eliminate less suited organisms and better adapted organisms would survive and pass on their traits to next generation leading to evolution.
Darwin and Wallace proposed that natural selection is the mechanism by which new species arise from pre existing ones. Natural selection states that there is "struggle for existence" within a population and variation exists within all population. The continuous competition between individuals for environmental resources creates a 'struggle for existence' and this struggle makes sure that certain organisms would fail to survive or reproduce. This would eliminate less suited organisms and better adapted organisms would survive and pass on their traits to next generation leading to evolution.
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EVOLUTION
the slow and steady Change in body design of organisms to help them to survive and adapt to the climatic conditions and over a period of time help in the formation of new species.
DARWIN's THEORY OF EVOLUTION
Theory of evolution by means of natural selection.
Darwin and Wallace proposed that natural selection is the mechanism by which new species arise from pre existing ones. Natural selection states that there is "struggle for existence" within a population and variation exists within all population. The continuous competition between individuals for environmental resources creates a 'struggle for existence' and this struggle makes sure that certain organisms would fail to survive or reproduce. This would eliminate less suited organisms and better adapted organisms would survive and pass on their traits to next generation leading to evolution.
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CHEERS ☺☺☺☺☺
HERE IS YOUR ANSWER
___________________________
EVOLUTION
the slow and steady Change in body design of organisms to help them to survive and adapt to the climatic conditions and over a period of time help in the formation of new species.
DARWIN's THEORY OF EVOLUTION
Theory of evolution by means of natural selection.
Darwin and Wallace proposed that natural selection is the mechanism by which new species arise from pre existing ones. Natural selection states that there is "struggle for existence" within a population and variation exists within all population. The continuous competition between individuals for environmental resources creates a 'struggle for existence' and this struggle makes sure that certain organisms would fail to survive or reproduce. This would eliminate less suited organisms and better adapted organisms would survive and pass on their traits to next generation leading to evolution.
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CHEERS ☺☺☺☺☺
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