Evolution Crossword

3. Body parts of different organisms that perform similar functions but do not have similar structures.
5. Body parts of different organisms that have a similar structure but not necessarily a similar function.
6. A theory stating that the earth's surface is broken into plates that move.
11. The system of unique, two part names for organisms.
12. The hypothesis that the continents slowly move across earth's surface.
16. Differences that exist naturally among members of a population or species.
17. An organism whose cells contain a nucleus and organelles enclosed by a membrane.
19. A body part that does not seem to have a
20. The science of classifying organisms.
21. The process by which species of organisms change over time.

1. A supercontinent containing all of Earth's land that existed about 225 million years ago.
2. A structural adaptation that enables an organism to blend in with its environment.
4. An organism whose cells lack a nucleus and organelles enclosed by membranes.
7. Outer covering of an animal used for protection or for attacks.
8. The process by which oceanic crust sinks beneath a deep-ocean trench and back into the mantle at a convergent plate boundary.
9. in an organism.
10. A trait that helps an organism survive in a particular environment.
13. The process by which organisms that are best suited to a particular environment survive and reproduce most successfully.
14. A change in the genetic material of an organism.
15. Ability of an animal to look like another more harmful animal
18. The color or patterns of color on an animal or plant.