Both tuna (fish)and dolphins (mammals)have a streamlined body shape and large tail fins that they use to move through the water.Many other anatomical and molecular data indicate,however,that tuna and dolphins are not closely related from an evolutionary perspective.The latter data suggest that _____.

Question

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The fact that tuna and dolphins have similar body shapes despite being evolutionarily distant suggests that they faced similar selective pressures for optimal body shape in their aquatic environment. This is supported by convergent evolution, where species evolve similar traits in response to similar environmental pressures, even if they are not closely related. Therefore, option C is the correct choice. Options A and B are incorrect, as anatomical data is still useful for classifying evolutionary relationships, and organisms can look different despite living in the same environment if they have different evolutionary histories. Option D is incorrect because as stated in the given information, anatomical and molecular data indicate that tuna and dolphins are not closely related evolutionarily.

Both Tuna (Fish)and Dolphins (Mammals)have a Streamlined Body Shape and Large