Chapter 2.1 Vocabulary

3. Primary _________ obtain their energy by eating primary producers
6. Flow of energy from an ecosystem to an organism and from one organism to another
8. Each step in a food chain is called a _______ level
9. Consumers that eat small dead animals, dead plant matter, and animal wastes
10. Food websare models of the ________ relationships within an ecosystem
11. Organisms that feed on plants
12. Consumers that eat both plants and animals
13. Change wastes and dead organisms into usable nutrients
16. Secondary consumers that eat primary consumers
18. Decomposition is the breaking down of _______ wastes and dead organisms
19. Shows loss of energy from one trophic level to another

1. Total mass of living plants, animals, fungi, and bacteria in an area
2. Plants producing food in the form of carbs during photosynthesis
4. Bacteria breaking down dead organic matter
5. In the fourth trophic level, there are _________ consumers
7. Primary consumers that eat plants
14. Located in the third trophic level are ________ consumers who eat primary consumers
15. Producers are located in the first trophic level and are called ________ producers
16. Food ______ show the flow of energy from plant to animal and from animal to animal
17. Several types of __________ pyramids such as biomass, numbers, and energy