Ecosystems Study online at quizlet.com/_1e05j7 1. abiotic 6. conservation The nonliving component of an ecosystem 2. Biomass Careful management and use of resources to assure continuing availability in the longer run 7. consumer The total dry mass of all selected organisms. 3. Biome An organism that eats other organisms 8. decomposer A group of ecosystems with similar climates and organisms 4. Any organism that feeds or obtains nutrients by breaking down organic matter from dead organisms. biotic 9. ecosystem The living or once-living organisms in an ecosystem 5. community A community of organisms that interact in an environment. A group of various species that live in the same habitat and interact with each other 10. environment 15. population All the living and non-living things that surround an organism. 11. food chain A group of individuals of the same species that live in the same area. 16. predator A simple model that shows how matter and energy move from one organism to another in an ecosystem. 12. food web An animal that kills and eats other animals. 17. prey A combination of food chains which connects all the living things within an ecosystem. 13. habitat Animals that are caught and eaten by other animals. 18. producer A place where an organism lives. 14. nutrient cycle An organism that can make its own food by using energy from its surroundings. Processes that move nutrients back and forth between the biotic and abiotic environment. 19. sustainable Development that meets the needs of people today without limiting the ability of future generations to meet their needs.