IB Biology D4.1.7 Sexual selection
IB Biology 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