Across
- 2. An area of land where all of the water drains into the same body of water.
- 4. Property of being a base.
- 7. Occurs when a part of the body is deformed or misshapen.
- 9. A segment of DNA that carries the genetic information that controls traits.
- 12. A characteristic that an organism can pass on to its offspring through its genes.
- 13. Group of organisms that spends part of their life in the water and part on land.
- 16. Capable of causing injury or death especially by chemical means
- 17. A stream that flows to a larger stream or other body of water.
- 19. Salt water ecosystems and organisms.
- 20. The removal of sediment from the bottom of a sea or river.
Down
- 1. Water held beneath the earths surface.
- 3. Solid objects or masses carried by or floating on the surface of moving water.
- 5. Organisms that float in the water and drift with the currents.
- 6. Substances that pollutes an environment.
- 8. Change in an organism that occurs when DNA is damaged or changed.
- 10. The ability to stay alive.
- 11. Children or young that are the results of parents who reproduce.
- 14. Anything capable of causing disease.
- 15. An underground rock formation where water collects.
- 18. The act of being different.
