Across
- 2. Genetic differences within a species
- 6. The evolution of a new species from an existing species
- 9. Wrote the Darwinism book
- 11. Any trait or behavior that allows and organism to survive in its habitat
- 13. Darwin studied these in the Galapagos islands
- 14. Same fuction but different structures. They do not show common ancestors
- 15. The preserved remains or traces of an organism from the past
- 17. Humans select traits that they want to move to next generation
- 18. Organism decays leaving a cavity of the shape of the organism
Down
- 1. Organisms that survive are "selected" by nature to reproduceand pass their traits to their offspring.
- 3. Parts of the anatomy that are no longer needed or used
- 4. Gives information about past life and time on Earth
- 5. Mud or sand hardens to stone where organism was left behind
- 7. Groups organisms by similar characteristics
- 8. A fossil that shows characteristics of both old and modern forms
- 10. Mold is filled with sand or mud that hardens in shape of organism
- 12. Wrote the book of "On the Origin of Species"
- 16. Structures formed in embryo that share like arrangements but can have different fuction