The cladogram shown here shows similarities and differences among several classes of vertebrates. Anatomically, the four have _ limb structure as their common ancestor. We might separate the mammals from the other three classes because they ___.
A) divergent; do not lay eggs
Eliminate
B) identical; are warm-blooded
C) varied; a four chambered heart
D) homologous; have mammary glands

The relationship between the groups of taxa can be depicted using cladogram. The cladogram here shows the anatomically homologous limbs as their common structure and mammary gland as the differentiating character.

What is homologous organ?

Homologous organs are referred to as the organs of animals that have similar structures but different functions. In other words, the structure of the two different animals resembles but the functions of their organs can vary.

Here cladogram shows similarities and differences among several classes of vertebrates.

Anatomically, the four have homologous limb structure as their common ancestor. They separated the mammals from the other three classes because they have mammary gland.

Thus, the correct option is D.

For more details regarding cladogram, visit:

https://brainly.com/question/27405768

#SPJ2