The front limbs of birds and bats -- both wings -- are considered to be:
A) homologous structures.
B) homozygous structures.
C) divergent structures.
D) vestigial structures.
E) homoplastic structures.

Question

Quizplus · Accepted Answer

The front limbs of birds and bats are considered homologous structures because they share a common evolutionary origin, even though they have evolved to perform different functions (flight in both cases).

The Front Limbs of Birds and Bats -- Both Wings