Ecosystems

1. animals that hunt and kill other animals for food
3. Plants are these because they are able to use light energy from the Sun to produce food (sugar) from carbon dioxide in the air and water.
5. all the living and nonliving things that interact in an environment
6. An animal that eats mainly plants
7. A living part of the ecosystem
8. an organism that spends a significant portion of its life in or on a living host organism usually causing harm to the host without immediately killing it.
10. Water-based ecosystems may be fresh water (lakes and ponds) or saltwater (oceans, estuaries and saltwater marshes).
12. A group of different populations of organisms.
13. animals that are hunted and killed as food for other animals.
14. An organism that breaks down other organisms
17. Animals that eat both plants and animals

2. Land-based ecosystems include forests and grasslands.
4. A nonliving part of an ecosystem
9. The boundary where a freshwater ecosystem meets saltwater ecosystem
11. Animals cannot make their own food so they must eat plants and/or other animals.
15. All members of a single type of living thing in an environment
16. chain^ The path that energy and nutrients follow in an ecosystem