It is believed that the coelacanths and lungfish represent a crucial link between other fishes and tetrapods. What is the major feature in these fish in support of this hypothesis?
A) Like amphibians, they are tied to the water for reproduction.
B) Their fins have skeletal and muscular structures similar to amphibian limbs.
C) They have highly evolved nervous and circulatory systems.
D) They have lungs and are able to breathe air when water is scarce.

Question

Quizplus · Accepted Answer

The major feature supporting the hypothesis that coelacanths and lungfish represent a link between other fishes and tetrapods is the similarity between their fins and amphibian limbs. Specifically, their fins have skeletal and muscular structures that resemble the limbs of early tetrapods. This suggests a possible evolutionary pathway from fish fins to tetrapod limbs.

It Is Believed That the Coelacanths and Lungfish Represent a Crucial