Evolution
Across
- 3. Have a common origin and reflect a common ancestry
- 5. One population divided into 2 distinct types.
- 6. Movement of alleles in and out of a population.
- 7. Evidence that the structures have evolved
- 9. One phenotype replaces another in the gene pool.
- 11. Natural disasters reduce the size of the population unselectively
Down
- 1. Have the same function, but the similarity is superficial and reflects an adaptation to similar environments.
- 2. Eliminates the extremes and favors the more common intermediate forms.
- 4. Increases the extreme types in a population at the expense of intermediate forms.
- 8. All aerobic organisms that carry out aerobic cell respiration contain this polypeptide.
- 10. When a small population breaks away from a larger one to colonize a new area