IB Biology SL D4.1.7 Sexual selection
IB Biology SL D4.1.7 Sexual selection
Practise explaining how mate choice, courtship behaviour and exaggerated male features affect reproductive success and selection.
How this is tested
- explain how showy plumage or courtship dances can increase mating success
- evaluate data on mate preference, noting weak trends or scattered evidence
- link sexual selection to reproductive advantage despite possible survival costs