Question

what do we mean by heredity and evolution​

Answer 1

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HEREDITY: It includes those traits or characters which are transmitted from generation to generation and are therefore fixed for a particular individual. ... Variation is concerned with the difference between the individuals of same species and also between the offspring of the same parents.

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Answer 2

HEREDITY: It includes those traits or characters which are transmitted from generation to generation and are therefore fixed for a particular individual. ... Variation is concerned with the difference between the individuals of same species and also between the offspring of the same parents.