Which of the following reflects the order in which organisms evolved?
A) chordates, vertebrates, amphibians, reptiles, mammals
B) vertebrates, chordates, reptiles, amphibians, mammals
C) vertebrates, mammals, chordates, reptiles amphibians
D) chordates, reptiles, amphibians, vertebrates, mammals

Question

Quizplus · Accepted Answer

Chordates are the earliest group, followed by the evolution of vertebrates from within the chordate group. Amphibians evolved from early vertebrates, which were followed by reptiles, and finally, mammals evolved from within the group of reptiles. Therefore, the correct order of the evolution of these groups is chordates, vertebrates, amphibians, reptiles, and mammals.

Which of the Following Reflects the Order in Which Organisms