Snakes do not have legs because:

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(B) The loss of limbs in snakes is a classic example of evolutionary adaptation. Snakes evolved from limbed ancestors (lizard-like reptiles). During t

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They lost their legs during the course of evolution.

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(B) The loss of limbs in snakes is a classic example of evolutionary adaptation. Snakes evolved from limbed ancestors (lizard-like reptiles). During the course of evolution,as they adapted to a burrowing or slithering lifestyle,the selective pressure led to the reduction and eventual loss of limbs. This is a result of natural selection and genetic changes over millions of years,not a result of individual effort or disuse during a single lifetime.

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