Scientific Investigation

3. (Deoxyribonucleic acid), a self-replicating material present in nearly all living organisms as the main constituent of chromosomes.
5. Joints that allow movement in all directions.
8. The process by which organisms with favorable adaptations survive and reproduce at a higher rate than organisms with less-favorable adaptations.
10. The process of how organisms acquire adaptations over time.
11. Diagram that shows hoe energy moves from one feeding level to the next in a food chain.
13. A disorder of the metabolism causing excessive thirst and the production of large amounts of urine.
17. An inherited trait that helps an organism survive.

1. An ancient supercontinent that broke apart to form today's continents.
2. A group of organs whose primary function is movement.
4. A set traits an organism receives from its parents.
6. Occurs when the environment changes and the adaptations of a species are no longer sufficient for its survival.
7. A group of living things and their surroundings.
9. A group of organs and nerves that gather,interpret,and respond to information.
12. A unit that determines traits.
14. The ability to cause change or do work.
15. A preparation of virus particles that,when injected into the body,causes the immune system to produce antibodies.
16. An organism from which others have descended.