Multiple choice

A good example of a homologous structure is

  1. pharengial pouches

  2. fins of whales and bat wings

  3. appendix

  4. similar genes

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Homologous structures are body parts that share a common evolutionary origin, even if they serve different functions. The forelimbs of whales and the wings of bats share a similar skeletal structure inherited from a common ancestor.