- Created by: E456
- Created on: 29-03-17 13:21
- Differences between the features of different individuals are called phenotypic variation.
- Reasons for variations:
- differences of individuals' genotypes (e.g. hair colour)
- differences between the environments of individuals (e.g. a pine tree cannot grow in a small pot)
- In general, discontinuous variation is caused by genes alone.
- Continuous variation is often influenced by both genes and the environment.
- An animal or plant that is well adapted to its environmnet is much more likely to survive than one that is not.
- Xerophyte adaptations that help them to survive in their difficult environments:
- closing stomata
- waxy cuticle
- hairy leaves
- stomata on underside…