Question

Is the highlighted group a class or a clade?

A.
It is a clade, because not all of the descendants of the ancestral species are included.
B.
It is a class, because not all of the descendants of the ancestral species are included.
C.
It is a clade, because the cladogram does not show that the group is descended from a common ancestor.
D.
It is a class, because the cladogram does not show that the group is descended from a common ancestor.

Answer 1

Although we do not have access to the diagram to provide a complete answer, we can confirm that a clade is when all members of the group being highlighted belong to a common ancestor.

What is a clade?

As stated, this is when the members of a depicted group belong to the same ancestor. It would be a clade if the organisms present are all descendants of a common ancestor, such as the class Aves or birds.

Therefore, we can confirm that a clade is when all members of the group being highlighted belong to a common ancestor.

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