Coelacanths and lungfish are collectively known as the lobe-finned fishes, and have fins containing similar arrangements of bones to those seen in tetrapod limbs. Which of the following statements about this relationship is TRUE?

O Because the fins of the lobe-finned fishes and the limbs of tetrapods are used for different purposes, they can not be homologous.

O Coelacanths and lungfish are considered to be the first tetrapods.

O This relationship is an example of a morphological similarity reflecting a likely evolutionary link.

O Despite the similar morphology of lobe fins and tetrapod limbs, genetic evidence suggests that coelacanths and lungfish are only distantly related to the tetrapods.

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Biology

14 November, 03:55

Coelacanths and lungfish are collectively known as the lobe-finned fishes, and have fins containing similar arrangements of bones to those seen in tetrapod limbs. Which of the following statements about this relationship is TRUE?

O Because the fins of the lobe-finned fishes and the limbs of tetrapods are used for different purposes, they can not be homologous.

O Coelacanths and lungfish are considered to be the first tetrapods.

O This relationship is an example of a morphological similarity reflecting a likely evolutionary link.

O Despite the similar morphology of lobe fins and tetrapod limbs, genetic evidence suggests that coelacanths and lungfish are only distantly related to the tetrapods.

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Answers (1)

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Hanna Ashley · Answer 1

Answer:This relationship is an example of a morphological similarity reflecting a likely evolutionary link

Explanation:

Lungfish and Coelacanths are distinct from other fish because they are lobe-finned species.

Lately, major palaeontological studies proposed that Lungfish and Coelacanth form a monophyletic sister group that is related closely to the tetrapods.

A monophyletic group is a group of organisms that include all the descendants and they share a common ancestor.