Across
- 2. differences in a population
- 4. Variation Organisms have different genes and traits
- 7. a group of organisms of the same species living in a particular area at the same time
- 8. occurs when the last individual of a species dies
Down
- 1. A trait that helps a population survive
- 3. the objects and conditions that surround an organisms
- 5. the change in genetics of species over time
- 6. the process in which DNA changes results in new alleles