Homologous structures share a common ancestry even when their functions differ. Vertebrate pentadactyl limbs provide evidence for divergent evolution and adaptive radiation.
The biological insights of Mendel and Darwin in the 19th century remain important to this day.
Describe, using one example, how homologous structures provide evidence for evolution.
| a | similar structure but different function «in homologous structures» |
| b | pentadactyl limbs/limb with five digits/toes / other example |
| c | similar bone structure/example of similarity of bones «in pentadactyl limbs» but different uses/functions |
| d | two examples of use of pentadactyl limb by a vertebrate group |
| e | suggests a common ancestor «and evolutionary divergence» |
| f | process called adaptive radiation |