IB Biology D4.1.6 Traits must be heritable
IB Biology D4.1.6 Traits must be heritable
Practise recognising that natural selection needs inherited variation and advantageous characteristics, not acquired changes during life.
How this is tested
- distinguish inherited variation from acquired characteristics in selection questions
- apply MCQ evidence to decide which requirements allow natural selection to occur
- link advantageous heritable traits to survival and reproduction across generations