Principles of Evolution
Across
- 6. A feature that allows an organism to better survive in its environment.
- 8. The study of extinct organisms or fossils.
- 10. All the individuals of a species that live in an area.
- 14. A measure of the ability to survive and produce more offspring relative to other members of the population in a given environment.
- 15. The geological processes that shape Earth are uniform through time.
- 16. structures Remnants of organs or structures that had a function in an early ancestor.
- 17. The process of biological change by which descendants come to differ from their ancestors.
Down
- 1. selection A mechanism by which individuals that have inherited beneficial adaptations produce more offspring on average than other individuals.
- 2. structure Structures that perform a similar function but are not similar in origin.
- 3. States that natural disasters such as floods and volcanic eruptions have happened often during Earth's long history.
- 4. structures Are features that are similar in structure but appear in different organisms and have different functions.
- 5. The ability of a trait to be passed down from one generation to the next.
- 7. A group of organisms so similar to one another that they can reproduce and have fertile offspring.
- 9. Changes in land forms resulted from slow changes over a long period of time.
- 11. Traces of organisms that existed in the past.
- 12. The difference in the physical traits of an individual from those of other individuals in the group to which it belongs.
- 13. selection The process by which humans change a species by breeding it for certain traits.