BIOLOGY

5. Organisms (like fungi or bacteria) that break down dead things.
7. All the parts of Earth where life exists, including land, water, and air.
9. A large area with similar plants, animals, and climate (e.g., forests, deserts).
10. The variety of different species and ecosystems on Earth.
13. The place where an organism lives.
16. Non-living things in an ecosystem, like water, sunlight, and temperature.
18. When organisms fight for the same resources, like food or space.
22. The study of how living things interact with each other and their environment.
23. A relationship where one organism benefits and the other is harmed.
24. Zonation: Different life zones found at different heights, like in mountains or oceans.

1. A relationship where both organisms benefit.
2. The role or job of an organism in its environment.
3. Living things in an ecosystem, like plants and animals.
4. A relationship where one organism is harmed, and the other is not affected.
6. Organisms, like plants, that make their own food using sunlight.
8. A community of living things and their environment, working together.
11. Dead plants and animals that decay and provide nutrients.
12. A group of the same species living in one area.
14. A close relationship between two different species.
15. A relationship where neither organism is affected.
17. Organisms that eat other organisms for energy.
19. Pyramid: A chart showing the amount of energy or living things at each level in an ecosystem.
20. A relationship where one organism benefits, and the other is not affected.
21. Web: A system showing how energy moves between different organisms in an ecosystem.