Across
- 2. the variety of organisms in an ecosystem
- 4. major site of photosynthesis in most plants
- 7. process by which plants use light energy to convert water and carbon dioxide into oxygen and glucose
- 11. hair-like extensions that allow the root to absorb more water
- 14. a species that influences the survival of many other species in an ecosystem
- 19. site of photosynthesis in plants
- 21. underground organs that absorb water and minerals
- 24. process that releases energy by breaking down glucose and other food molecules
- 25. level step in a food chain or food web
Down
- 1. dioxide a gas that is expelled by humans and animalso
- 3. main source of energy for an ecosystem
- 5. the location of cellular respiration
- 6. tissue in plants that transports water
- 8. gas created as an outcome of photosynthesis
- 9. part of cell division during which the nucleus divides
- 10. an animal that is hunted for foor
- 12. main energy source that most cells use for their work
- 13. small opening on the underground leaf which allows gas to flow
- 15. the struggle between organisms to survive
- 16. diffusion of water across a selectively permeable membrane
- 17. tissue in plants that transports glucose
- 18. largest number of individuals of a population that an environment can support
- 20. an animal that hunts other animals for food
- 22. a biological community of interacting organisms and their physical environment
- 23. factor any biotic or abiotic factor that restricts growth of a population
