What is the correct evolutionary pathway for the key features of chordates?
A) notochord-vertebrae-jaws-bony skeleton-lungs-4 limbs-amniotic egg-mammary glands
B) vertebrae-notochord-jaws-bony skeleton-lungs-4 limbs-amniotic egg-mammary glands
C) notochord-vertebrae-jaws-bony skeleton-lungs-amniotic egg-4 limbs-mammary glands
D) notochord-vertebrae-jaws-bony skeleton-mammary glands-lungs-4 limbs-amniotic egg
E) mammary glands-notochord-vertebrae-jaws-lungs-4 limbs-amniotic egg-bony skeleton

Question

Quizplus · Accepted Answer

The correct evolutionary pathway for chordates starts with the development of a notochord, followed by the evolution of vertebrae, jaws, a bony skeleton, lungs, four limbs, the amniotic egg, and finally mammary glands. This sequence reflects the major evolutionary milestones from early chordates to mammals.

What Is the Correct Evolutionary Pathway for the Key Features