Across
- 2. the movement of energy through an ecosystem
- 5. a diagram showing energy amounts at different trophic levels
- 6. the organelle where cellular respiration occurs and where energy is created
- 10. organisms that eat dead organic matter (ex: earthworms)
- 14. the first step of cellular respiration that breaks down glucose
- 15. organisms that break down dead matter
- 16. an organism that eats other organisms
- 17. the movement of energy from one organism to another
- 18. the feeding levels in a food chain or web
- 19. created by cellular respiration for quick use of energy when needed (think battery)
- 20. the sugar made during photosynthesis
- 23. the process that plant and animal cells use to release energy from food--occurs in mitochondria
- 25. the gas cycle involving oxygen moving through organisms and environment
- 29. the principle that matter cannot be created or destroyed
- 33. the cycle that moves water through Earth’s systems
- 34. a community of living and nonliving things interacting together
- 35. when bacteria breaks down nitrogen from the air into soil so that plants can use them
Down
- 1. the cycle that moves nitrogen through ecosystems
- 3. a process that does not require oxygen
- 4. energy from the sun
- 7. living things in an ecosystem
- 8. organisms that must eat other organisms for energy
- 9. the process of creating offspring
- 11. the movement of matter through living and nonliving parts of ecosystems
- 12. a network of connected food chains
- 13. the cycle that moves carbon through living and nonliving things
- 19. nonliving things in an ecosystem
- 21. a process that requires oxygen
- 22. when water vapor cools and turns into liquid--the second step of the water cycle
- 24. the process where liquid water turns into vapor--the first step of the water cycle
- 26. any form of water—liquid or solid—that falls from the atmosphere and reaches the Earth's surface--the last step of the water cycle
- 27. the organelle where photosynthesis happens
- 28. the process that happens in the chloroplast that plants use to make food using sunlight, water, and carbon dioxide
- 30. a series of organisms each dependent on the next for food
- 31. aerobic process where specialized soil bacteria convert ammonia into nitrites that are used for plants to create proteins and DNA
- 32. organisms that make their own food
