Biology 4.14 Crossword puzzles
Across
- 6. Prevents the fertilization of eggs.
- 7. The process by which individuals compete for access to mates and fertilization opportunities.
- 8. The idea that evolution occurs in spurts instead of following the slow, but steady path that Darwin suggested.
Down
- 1. Occurs after members of two different species have mated and produced a zygote.
- 2. Occurs when a species separates into two separate groups which are isolated from one another.
- 3. Evolution of an animal or plant group into a wide variety of types adapted to specialized modes of life.
- 4. Occurs when there are no physical barriers preventing any members of a species from mating with another, and all members are in close proximity to one another.
- 5. The policy of approaching a desired end by gradual stages.