Question

explain speciation and natural selection

Answer 1

HEYA,
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SPECIATION : The process of formation of one or more new species from the existing one by evolutionary means is known as speciation.

NATURAL SELECTION : The process in nature by which, according to Darwin's theory of evolution, only the organisms best adapted to their environment tend to survive and transmit their genetic characteristics in increasing numbers to succeeding generations while those less adapted tend to be eliminated.
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Answer 2

speciation means origin of new species from the existing one .
natural selection means the special selection made naturally