In the Linnaean system, birds and reptiles are each classified in a separate class. However, in the modern system, birds are members of the

clade Reptilia. Which conclusion, based on evidence, did scientists cite to revise the classification of birds?

A Birds and reptiles have adaptations for surviving in similar habitats.

B. Birds and reptiles both rely on DNA, RNA, and the universal genetic code ...

C. Birds and reptiles share many behavioral traits, such as laying eggs in nests.

D. Birds descended from the most recent common ancestor of reptiles.

Question

Jacquelyn Hopkins

Biology

23 October, 18:15

In the Linnaean system, birds and reptiles are each classified in a separate class. However, in the modern system, birds are members of the

clade Reptilia. Which conclusion, based on evidence, did scientists cite to revise the classification of birds?

A Birds and reptiles have adaptations for surviving in similar habitats.

B. Birds and reptiles both rely on DNA, RNA, and the universal genetic code ...

C. Birds and reptiles share many behavioral traits, such as laying eggs in nests.

D. Birds descended from the most recent common ancestor of reptiles.

+2

Answers (1)

Know the Answer?

Sharon Choi · Answer 1

The correct option is D) Birds descended from the most recent common ancestor of reptiles.

Explanation:

The modern system of classification is based on the evolutionary history of organisms. The organisms having more common ancestors from the past stand more closely together in the evolutionary tree. The evolutionary history of the birds showed that birds originated from an ancestor which was a reptile in the past. Hence, in the modern system of classification, birds are placed as members of the clade reptiles.