Across
- 2. A famous biologist and naturalist who is known for his contributions to the study of evolution through the process of natural selection.
- 4. A characteristic or trait that helps an organism survive and reproduce in its environment.
- 9. A specific characteristic of an organism, such as eye color or leaf shape.
- 10. A process in which humans choose specific traits they want and breed organisms together for those specific traits.
- 13. The complete disappearance of a species from Earth.
- 14. Changes in the gene pool of a small population that occur by chance.
- 15. A group of organisms that can breed with one another and produce fertile offspring.
Down
- 1. The gradual change in a species over time resulting in new species being formed from ancestral forms.
- 3. The process where organisms that are better adapted to their environment tend to survive and produce more offspring.
- 5. Observing similar structures in organisms and comparing them to each other
- 6. Differences in traits among individuals of the same species.
- 7. A change in the DNA sequence that can lead to new traits in a population.
- 8. Factors in the environment that influence which individuals survive and reproduce.
- 11. Interaction among organisms that vie for the same resource in an ecosystem.
- 12. A group of organisms of the same species living in the same area.
- 16. The process by which new species evolve from existing species.