Ecosystem Crossword

3. An animal that hunts other animals for food
5. A process used by plants and other autotrophs to capture light and energy and use it to power chemical reactions that convert carbon dioxide and water into oxygen and energy-rich carbohydrates, such as sugars and starches.
7. Organisms that feed on producers
9. An organism that creates its own food or energy
11. A group of organisms that can reproduce with one another in nature and produce fertile offspring
12. Anything that constrains a population's size and slows or stops it from growing
13. An organism that eats both plants and animals
15. An organism that feeds on and breaks down dead plant or animal matter
17. A non-living part of an ecosystem that shapes its environment
20. Any living biological entity, such as an animal, plant, fungus, or bacterium
21. A geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life

1. A carnivore at the topmost level in a food chain that feeds on other carnivores
2. A living organism that shapes its environment
4. A group of the same species living in the same area
6. The maximum population size of a biological species that can be sustained by that specific environment
7. An organism that lives on or in a host and causes harm to the host
8. An organism that mostly feeds on plants.
9. An organism that is killed and eaten by another organism
10. The physical, chemical, and biotic factors that act upon an organism or an ecological community
14. The direct or indirect interaction of organisms that leads to a change in fitness when the organisms share the same resource
16. All the food chains in a single ecosystem
18. An organism that mostly eats meat, or the flesh of animals
19. A linear sequence of organisms through which nutrients and energy pass as one organism eats another