Across
- 5. father of modern geology
- 8. Founder of the theory of natural selection
- 10. all members of the same species living together
- 11. type of selection which occurs when breeding
- 12. when an organism mimics its surroundings to stay hidden
Down
- 1. Variations which are genetic
- 2. Species' natural surroundings
- 3. Darwin's major theory
- 4. type of isolation which occurs due to the land
- 6. isolation which occurs due to a time difference in mating seasons
- 7. type of selection which occurs during the selection of mates in a species
- 9. characteristic which is always expressed