Across
- 5. break down organic matter
- 6. characteristic types of chromosomes in a species
- 10. main factor making humans different from each other(abbreviated)
- 12. change in heritable characteristics
- 13. splitting of pre-existing species
Down
- 1. a cause of variation in asexual organisms
- 2. change in acquired characteristics
- 3. John Endler's experiment species
- 4. Darwin's theory of evolution
- 7. cell contains three or more sets of chromosomes
- 8. reduces gene pool
- 9. a group of organisms with shared traits
- 10. main way of classifying chromosomes
- 11. reliable source of energy in an ecosystem
- 14. position within a community