Question

Notice that the appendages of the organisms in the picture contain an overall common structure but different functions. What is the best explanation on why these organisms share a common structure in number and organization of bones?

A) These organisms are all of the same species.
B) These organisms all evolved from a common ancestor.
C) These organisms passed on acquired traits to their offspring.
D) These organisms all lived in similar habitats and were therefore under similar environmental pressures.

Answer 1

The correct Anwser is B.

Answer 2

B.
Most animals came from the Ancient lobe-finned fish them depending on their ecosystem evolved the bones to better suit their needs.