Across
- 6. organism that makes its own food
- 7. a molecule needed to make proteins and cycles in the environment
- 10. process that only plants do to make food
- 11. ingredient for photosynthesis that comes through a plant's stem
- 14. Something living or once living
- 15. when organisms of the same species fight over resources
- 16. ingredient for photosynthesis that enters plant through stoma
- 18. Organism that keeps ecosystem from collapsing
- 20. One singular living thing
Down
- 1. population of organisms that an ecosystem can support with all the resources
- 2. process that plants AND animals do to get energy from food
- 3. organism that needs to eat other things for food
- 4. examples are predators, water, food, light, space, mates
- 5. a molecule needed to create DNA and ATP, and cycles in the environment
- 8. Product of photosynthesis we consider "food for plant"
- 9. Something non-living and never lived
- 12. Biotic and abiotic things existing together
- 13. ingredient necessary for cellular respiration that we get when we breathe
- 17. Ecosystem whose lack of oxygen causes all life to die
- 19. where all energy for life originally comes from