Name:____________. Living Systems Vocabulary (Test Date: ___________)

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Across
  1. 3. part of Earth that includes all living things from plants and animals to fungi and bacteria AND any place you can find life on or around Earth
  2. 8. a heavy colorless gas that is formed in animal respiration and in the decay of animal and plant matter
  3. 9. a community of organisms interacting with each other and the nonliving environment
  4. 11. an organism that feeds on other organisms because it can’t make its own food
  5. 12. all gases on the planet, such as oxygen, nitrogen, and carbon dioxide
  6. 13. a chemical in food that is essential for an organism to grow, develop, and live
  7. 14. a carbohydrate, or sugar, that is rich in energy; produced in plants through photosynthesis
  8. 17. an animal that gets its energy from eating plants
  9. 18. the NON-living soil, rocks, and minerals that make up the land on Earth (also includes the inner Earth)
  10. 19. process by which green plants, in the presence of light, make food out of carbon dioxide and water
  11. 21. microorganisms that act as decomposers in every ecosystem
Down
  1. 1. all the food chains in a single ecosystem
  2. 2. any living thing
  3. 4. organic litter made up of dead organisms, their parts and waste
  4. 5. an organism that can make its own food through the process of photosynthesis
  5. 6. a colorless and odorless gas that people and animals need to breath
  6. 7. an organism that breaks down dead plants and animals into simpler substances (ex. Snail, earthworm, mushroom)
  7. 10. an animal that gets its energy from eating other animals
  8. 15. shows how each organism gets food, and how energy is passed from one organism to another
  9. 16. all water on Earth including rivers, lakes, oceans, and glaciers
  10. 20. an animal that gets its energy from eating plants and other animals