EVOLUTION
EVIDENCE FOR EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Sharks & dolphins have the ability to breath but the structures involved are quite different
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because they are incomplete structures.
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because of descent with modification.
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because they are vistigial structures.
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because they are analogous structures.
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Explanation:
Detailed explanation-1: -Another example of analogous structures are dolphins and sharks as whole species.
Detailed explanation-2: -Their streamlined bodies, dorsal fins and flippers are the result of convergent evolution. Since dolphins and sharks occupy similar niches and face similar challenges, similar adaptations have been advantageous to them, resulting in their analogous structures.
Detailed explanation-3: -Homologous structures share a similar embryonic origin; analogous organs have a similar function. For example, the bones in the front flipper of a whale are homologous to the bones in the human arm. These structures are not analogous. The wings of a butterfly and the wings of a bird are analogous but not homologous.
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