Across
- 2. A structure found in organisms that is no longer used for its original purpose.
- 3. A common/similar structure that is found in various organisms from a common ancestor but used for different purposes.
- 4. A group or population of similar organisms that can reproduce and exchange genes with each other.
- 9. An inherited trait that proves to be beneficial for the survival & reproduction of an organism.
- 10. Structures found in different organisms that may have the same function but does not share similar structure or a common ancestor.
- 11. The evolution and history of life as recorded by fossils.
- 12. The complete dying off or disappearance of something.
Down
- 1. The process in which humans select certain organisms to survive & reproduce to create offspring with desirable traits.
- 5. The process by which organisms that have beneficial inherited traits tend to survive and reproduce at higher rates than other individuals because of those traits.
- 6. The differences in traits of organisms of the same species.
- 7. Change in a species over time.
- 8. A British natural scientist who created the theory of evolution by natural selection in his book "On the Origin of Species".