OBJECTIVE LIFE SCIENCE
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Shark fins and dolphin fins are examples of analogous structures.
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True
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False
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -Dorsal fins of sharks and dolphins are analogous structures. Sharks are cartilaginous fishes, whereas dolphins are cetacean mammals. These two groups are related, but distantly. The evolution of fins in both the species is due to the habitat they share, that is water.
Detailed explanation-2: -Streamlined bodies and fins are traits that dolphins and sharks evolved separately, both as adaptations for swimming. This means that sharks’ and dolphins’ similarities (body shape, fin, and flippers) are convergent traits that each lineage evolved independently.
Detailed explanation-3: -Shark fins and dolphin fins are examples of analogous structures.
There is 1 question to complete.