Across
- 1. a struggle between two or more organisms for a limited resource
- 5. changes in an organism that make it better able to live in a particular place or situation
- 6. rotting
- 9. dying out
- 12. tiny pores that allow gases to move in and out of a plant
- 16. developed for a specific purpose
- 20. an organism that makes its own food
- 21. an animal that kills and eats other animals
- 22. an organism that relies on other plants and animals for food
- 23. having no tissues to carry water or nutrients
- 24. a group or system of interconnected things
- 25. having tissues that are able to transport water and nutrients
- 26. an organism that breaks down dead plant and animal matter
- 28. chain a series of organisms in which each member feeds on the one below it
- 29. a green pigment in plants that absorbs sunlight
- 31. a strong effect
- 32. an animal that eats both plants and other animals
Down
- 2. the passage of water vapor through a plant's pores
- 3. the waste that comes out of an earthworm's body
- 4. an organism that can only be seen under a microscope
- 7. to change in form
- 8. the natural home of an animal plant or other organism
- 10. cells that contain chlorophyll and convert sunlight into energy
- 11. web a network of interconnected food chains
- 12. to provide what is needed to exist or continue
- 13. an animal that eats only plants
- 14. the part played by a person or thing in bringing about a result
- 15. an animal hunted or caught for food by another animal
- 17. to take in or soak up
- 18. a group of organisms and the environment in which they live
- 19. the kind of food that an organism regularly eats
- 27. the process by which plants use sunlight carbon dioxide and water to create food
- 29. an animal that eats other animals
- 30. the fat of sea mammals