Natural Selection

3. Structures that are similar in diffrent species and have inherited from a common ancestor.
8. Change over time; a process in which modern organisms have descended from ancient organisms.
10. Selection Process by which organisms that are best adapted to their enviroment are most likely to survive.
13. The preserved remains or traces of an organism that lived in the past.
14. To describe a group of organism that has died out and has no living members
16. A type of natural selcetion that acts on an organism ability to get the best possible mate.
17. A well tested explanation for a wide range of observations or experimental results.

1. A relationship in which one organism lives inside the other.
2. The natural process by which something takes place.
4. groups of similar organisms that can mate with each other and produce offspring that can do the same.
5. Process by which 2 species evolve to change in each other over time.
6. Large organic molecule made of Carbon, Hydrogen, Oxygen, Nitrogen, and sometimers Sulfur.
7. The young organism that develops into a zygote
9. An inherited behavior or physical characteristic that helps an organism survive and reproduce in its environment.
11. All fossil that have been discovered and what scientist have learned from them.
12. How well an organism can survive and reproduce in it’s environment
15. The struggle between organisms to survive as they attemp to use the same limited resources in the same place at the same time.