Across
- 3. A feature that allows an organism to better survive in its environment because of a certain variation allows an individual to survive better than other individuals it competes against in its environment
- 7. The ability of a trait to be passed down from one generation to the next.
- 9. The environment is the selective agent in which type of process. (2 words)
- 10. The process of biological change by which descendants come to differ from their ancestors.
- 12. The spread of an adaptation throughout new generations (3 words)
- 13. The difference in the physical traits of an individual from those of other individuals in the group to which it belongs.
Down
- 1. Producing many offspring, some of which may not survive
- 2. A mechanism by which individuals that have inherited beneficial adaptations produce more offspring on average than do other individuals. (2 words)
- 4. All the individuals of a species that live in an area.
- 5. A measure of the ability to survive and produce more offspring relative to other members of the population in a given environment.
- 6. A random change in the DNA of a gene
- 8. Humans are the selective agent in the process. (2 words)
- 11. A group of organisms so similar to one another that they can reproduce and have fertile offspring.