Evolution and Plate Tectonics

2. fossil copy of an organism in a rock
4. impression of an organism in a rock
6. preserved evidence of the activity of an organism
7. person who studies plants and animals by observing them
9. when all individuals of a species have died
10. similar cells that work together and perform a function
11. pulling force at a divergent boundary
12. the breeding of organisms for desired characteristics
16. characteristic of a species that enables the species to survive in its environment
17. set of all the fossils ever discovered on Earth
22. states that Earth’s crust is broken into rigid plates that move slowly over Earth’s surface
23. squeezing force at a convergent boundary

1. chart that divides Earth’s history into different time units
2. hypothesis stating that continents move
3. slight difference in the appearance of individual members of a species
5. boundary where two plates move apart from each other
8. resemblance of one species to another species
13. boundary where plates slide horizontally past each other
14. process by which populations of organisms with variations that help them survive in their environments live longer, compete better, and reproduce more than those that do not have the variations
15. boundary where two plates move toward each other
18. area where one plate slides under another
19. adaptation that enables species to blend in with their environments
20. change over time in populations of related organisms
21. side-by-side dragging force at transform boundaries