Evolution

4. It is the process by which modern organisms have descended from ancient organisms
10. the study of fossil remains or other clues to past life
12. a well-supported testable explanation of phenomena that have occurred in the natural world
13. a features that provide a selective advantage because they improve an organism's ability to survive and reproduce
14. the most common way for one gene pool to become isolated from another.
16. Charles Darwin’s theory of evolution states that evolution happens by what?
17. when organisms disappear from the earth
19. Darwin collected the preserved remains of ancient organisms, called ____
20. It had different shaped beaks depending on the island they were from

1. organs that serve no useful function in an organism
2. when two species evolve together
3. type of evolution when the same adaptations evolve independently, under similar selection pressures
5. reduce the fitness of a hybrid offspring
6. father of evolution
7. the formation of new species
8. the name of the ship that Charles Darwin traveled on
9. structures that are similar
11. principle that states that living species are descended from ancient ones; descended with __________
15. the structures evolved independently
18. the name of Darwin's book; the ___ of species