Practice!

Sample Problem

Please label the following “H” for homologous, “A” for analogous structures, and “V” for vestigial structures.

forearms of cows and birds

wings of birds and bats

demonstrates divergent evolution

pelvic bones in whales and wisdom teeth in humans

demonstrates convergent evolution

Solution

The answers are as follows: H, A, H, V, A. Remember homologous structures are anatomically the same structures but have different functions, whereas analogous structures are anatomically different but have the same functions.