Ecosystems revision

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Across
  1. 4. an animal that eats meat only
  2. 6. how different organisms rely on each other
  3. 9. the movement of particles from an area of high concentration to low
  4. 10. the green pigment needed for photosynthesis
  5. 12. an animal that eats plants only
  6. 15. anaerobic respiration in plants and yeast is also called this
  7. 16. respiration is how we release _______ from glucose/food
  8. 17. the waste gas of aerobic respiration
  9. 19. the type of energy needed for photosynthesis
  10. 21. anything that is alive
Down
  1. 1. this builds up in animal tissues due to anaerobic respiration
  2. 2. the type of respiration that happens during intense exercise
  3. 3. the name of the cells where most photosynthesis takes place
  4. 5. an animal that hunts other animals
  5. 7. the number of individuals of one type of organism in an area
  6. 8. the organelle where aerobic respiration takes place
  7. 11. an animal that eats both plants and animals
  8. 12. the protein that carries oxygen in the red blood cells
  9. 13. the gas needed for aerobic respiration
  10. 14. the process by which plants make glucose
  11. 18. the part of the lung where gas exchange happens
  12. 20. an organism that has to eat to take in glucose