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