Question

Which of the following statements regarding fins on fishes is true?
a. Fins evolved so that fish could swim better.
b. Fins resulted from a mutation caused by a movement from land to water.
c. Fins are an adaptation that aid in swimming.
d. Fins came about because animals couldn't live in water without them.

Answer 1

Answer:

The answer is B

Explanation:

Answer 2

The statement 'fins are an adaptation that aid in swimming' regarding fins on fishes is TRUE (Option c).

• In evolutionary biology, an adaptation refers to any phenotypic trait that confers an evolutionary advantage to the individuals carrying the adaptation.

• Evolutionary adaptations are the result of the mechanism of natural selection, it means that individuals having an adaptation for a particular environment have more chances to survive and reproduce, thereby they also have more chances of passing the adaptive trait to the next generation.

• For example, the presence of white fur in polar bears is an adaptation so that they can camouflage into their (ice) environment.

In conclusion, the statement 'fins are an adaptation that aid in swimming' regarding fins on fishes is TRUE (Option c).

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