Unit 1 Vocabulary

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