1. Food Webs Within Ecosystems Marine, Freshwater, and Terrestrial FOOD WEBS

2. Ecosystems A community of organisms interacting with one another and their environment Includes all Biotic and Abiotic factors –Biotic Factors – All living things Plants and animals –Abiotic Factors – All nonliving things Water and land

3. Marine Ecosystems Ex. Oceans

4. Freshwater Ecosystems Ex. Lakes, ponds, rivers, streams

5. Terrestrial Ecosystems Ex. Forests, Deserts, Grasslands, Mountains

6. Habitat Place where an organism lives

7. Population Group of individuals of the same species that live in a certain area

8. Community All the populations that live and interact with each other in an area

9. Niche The role of an organism within it’s community (An organisms job; what it does for the community) Coral, plankton, fish

10. Food Chain Shows how the energy in food is passed from organism to organism in an ecosystem

11. Food Web Combination of all overlapping food chains in an ecosystem.

12. Producers Plants - Organisms that make their own food through photosynthesis

13. Consumers Animals - Organisms that eat other organisms to obtain food for energy

14. 3 Types of Consumers Herbivores – Animals that only eat plants Omnivores – Animals that eat plants and other animals Carnivores – Animals that only eat other animals (meat)

15. Predator/Prey Relationships Predator – Organism that eats another organism Prey – Organism in which the predator eats

16. Parasite/Host Relationships Parasite – organism that feeds off other living creatures –Fleas, Ticks, Worms, Lice, etc. Host – organism that is being feed on by a parasite

17. Decomposers Organisms that get their energy by breaking down dead organisms