Across
- 3. relating to or consisting of molecules.
- 4. Deoxyribo- Nudeic Aid.
- 7. information acquired by observation or experimentation.
- 10. the surroundings or conditions which a person, animal, or plant live or operates.
- 11. a group of organisms consisting of similar individuals capable of exchanging genes.
- 13. ____________ anatomy indicates that various organisms share a common ancestor.
- 15. ___________ shows similarities between organisms as they are developing.
- 18. ____________ structures are features that are similar in function but different in structure.
- 19. ____________ distribution of species shows organisms adapt to new environment.
Down
- 1. all organisms share a common __________.
- 2. an individual animal, plants, or single-celled life form.
- 5. s chicken and a pig share a ________ ancestor.
- 6. the oldest known fossil bird ______________.
- 8. relating to genes or heredity.
- 9. a available body of facts or information indicating whether belief.
- 12. _____________ structures are features that are similar in structure but different in function.
- 14. a process by which different kinds of living organisms are thought to have developed and diversified from earlier forms during the history of the earth.
- 16. _____________ structures are remnant of organs or structures that had a function in an early ancestor.
- 17. provide a record of evolution.
- 20. a study of the structure or internal workings of something.