I keep getting “Homologous vs analogous organs” questions wrong in Evolution. What's the trap?
treating any organs that do the same job as evidence of common ancestry.
The usual trap: treating any organs that do the same job as evidence of common ancestry. How to avoid it: homologous = same origin (divergent); analogous = same job (convergent). Go back to the definition — homologous organs share structure but differ in function (common ancestry, divergent evolution); analogous organs share function but differ in structure (convergent evolution).
Key point
Homologous vs analogous organs
Common mistake
treating any organs that do the same job as evidence of common ancestry.
Memory tip
homologous = same origin (divergent); analogous = same job (convergent).
Tap to watch or see it right here — the app stays open (it only opens a quick search if nothing embeddable is found).