Across
- 1. the green pigment in plants used in absorbing light energy required for photosynthesis
- 2. pieces of rock or metal in space ranging in size with no distinct orbit
- 5. the scientific study of the earth
- 6. the non-living components of an ecosystem
- 7. animals that eat meat only
- 8. a relationship in which organisms depend upon each other for their survival
- 11. the study of all forms of animal life
- 12. an animal that consumes dead organic material
- 13. area in which plants, animals, and microbes interact with each other and their environment
- 14. a change in structure or function that enables an organism to adjust better in its environment
- 18. a green plant that makes food through the process of photosynthesis
- 19. the scientific study of outer space
- 20. the living components of an ecosystem
- 22. warm-blooded animals with hair who nurse their young and have a live birth
Down
- 1. a relationship in which one species is benefited while the other is neither helped nor harmed
- 3. an animal that eats both plants and meat
- 4. a cold-blooded animal covered with scales
- 9. the process by which green plants produce food
- 10. the management of resources that provides for the future
- 15. a relationship where one organism attaches itself to another organism and feeds on it over a period of time, harming the other organism
- 16. the invisible force exerted upon the earth that attracts smaller objects toward the center
- 17. living organism that feeds on living material, cannot make their own food
- 21. a group of billions of stars bound together by gravity into a huge colony of stars