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Ecosystems

*7.12AB Matter and Energy in Ecosystems

TermDefinition
Producers organisms that use sunlight to make their own food through the process of photosynthesis
Consumers organisms that cannot make their own food and obtain energy by feeding on other organisms
Decomposers organisms that get energy by breaking down organic wastes or dead organisms, returning raw materials to the soil and water
Trophic Level feeding level in an ecosystem
Energy Pyramid diagram that shows the amount of energy that moves from one trophic level to another in a food web
Nutrients substances that an organism needs to carry out its life processes
Biosphere system on Earth containing all living things, & living/ nonliving factors needed for life on Earth; contains all ecosystems
Ecosystem biotic and abiotic factors provided to support specific populations in a community
Biotic Factor living or once living part of an ecosystem
Abiotic Factor non-living part of an Ecosystem. Examples include water, space, and many others
10% Rule as energy flows from one trophic level to the next in ecosystems, only about 10% of the energy is transferred, with the rest lost as heat or used for life processes
Biomass total quantity or weight of organisms in a given area or volume
Sustainability ability of an ecosystem to maintain itself, ensuring its continued existence, balance, and productivity over time
Primary Consumer organisms that get their energy by feeding on producers in the food chain
Secondary Consumer organism that gets their energy by feeding on primary consumers (herbivores) in the food chain
Tertiary Consumer organisms that get their energy by eating secondary consumers
Herbivore animal that only eats plants or plant products
Carnivore animal that eats other animals
Omnivore animal that eats both animals and plants; some will hunt and eat their food; others are scavengers and will eat dead matter
Created by: trauberk
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