Across
- 2. believed in acquired characteristics
- 5. allows comparison of extinct to current organisms
- 6. change in population over time
- 7. Darwin did not have this evidence
- 10. able to reproduce
- 11. distribution of species
- 12. unable to reproduce
- 13. evolution due to change in an environment
- 16. choosing your mate due to traits
- 18. process of one species becoming two because of reproductive isolation
Down
- 1. used to blend into environment
- 3. type of gene
- 4. changes in allele frequencies due to RANDOM chance
- 7. first to think of natural seletion
- 8. immigration or emigration
- 9. offspring from two different species
- 12. member of population that can reproduce
- 14. unit of inheritance
- 15. able to survive
- 17. a harmless organism trying to resemble a harmful species