Natural Selection
Across
- 5. Father of modern evolution
- 8. The population reduces and genetic drift occurs because of the ... effect
- 9. A trait that assists in fitness of an organism
- 10. Creation of a new species
- 11. Evolution over a long timespan that results in the creation of a new species
- 13. Behavior inherited from birth
- 15. Survival of the fittest
- 16. A trait that is shared between two species, inherited from a shared ancestor, is called...
- 19. Naturalist that came up with the idea that traits were altered during the organism's life
- 20. ... Advantage, when ... individuals have increased success in reproduction
- 21. An organism that focuses on a long lifespan and raising its children
Down
- 1. A group of organisms, of one species, in a given area
- 2. An organism that focuses on high reproduction rates
- 3. Trait that is no longer used by the organism
- 4. Source of new adaptations and traits
- 6. A graph that shows evolutionary relationships
- 7. Barriers that prevent hybrid zygotes from reproducing after birth
- 12. Principle that allele frequencies will remain constant, unless outside factors cause a change
- 14. Trait in two unrelated species that perform the same function
- 17. Barriers that prevent hybrid zygotes before birth
- 18. All genes of a population
- 19. Behavior that is learned during the organism's life