← Responses of plants and animals to their external environment
2 How this connects to the other Level 3 Biology standards
Responses does not sit in isolation. Reproductive isolating mechanisms, kin selection and hierarchy all reappear, under different names, in the evolution standards.Shared ideas across the Level 3 Biology externals
- Courtship here is a reproductive isolating mechanism — the same term 91605 (Evolution) uses when explaining how two populations stop interbreeding and diverge into separate species.
- Kin selection explaining altruism here is the same selection-acts-on-alleles reasoning 91606 (Human Evolution) and 91605 use to explain how any trait, not just a behaviour, spreads through a population.
- A hierarchy determining which individuals breed is intraspecific competition acting exactly as natural selection does elsewhere on this site — some individuals leave more offspring than others, and the trait (rank-winning behaviour) becomes more common.