Across
- 2. Structure A body part that has lost its original function through the course of evolution, indicating a shared ancestry with other species.
- 3. The process through which populations of organisms change over generations, leading to the development of new species.
- 7. Diversity The variety of life in the world or in a particular habitat or ecosystem.
- 9. Advantage A favorable trait that increases an organism's chances of survival and reproduction in a given environment.
- 10. A group of individuals of the same species living in a specific area that can interbreed.
- 11. Variation The differences in DNA among individuals in a population, which can lead to different traits.
- 12. A segment of DNA that contains the instructions for building a specific protein or trait in an organism.
- 13. The formation of new and distinct species in the course of evolution.
- 15. A characteristic or feature of an organism that can be inherited or acquired.
Down
- 1. A trait that helps an organism survive and reproduce in its environment.
- 4. The differences in traits among individuals within a population.
- 5. Selection The process by which organisms better adapted to their environment tend to survive and produce more offspring.
- 6. Pressure An environmental factor that can affect an organism's chances of survival and reproduction.
- 8. A measure of an organism's ability to survive and reproduce in a particular environment.
- 14. The observable physical or biochemical characteristics of an organism, determined by both genetic makeup and environmental influences.