In a comparison of birds and mammals, the condition of having four limbs is ________.
A) a shared ancestral character
B) a shared derived character
C) a character useful for distinguishing birds from mammals
D) an example of analogy rather than homology

Question

Quizplus · Accepted Answer

Both birds and mammals inherited the trait of having four limbs from a common ancestor, making it a shared ancestral character.

In a Comparison of Birds and Mammals, the Condition of Having