Semester Final Flashcards
Energy Pyramid
A model that shows the available amount of energy in each trophic layer in an ecosystem .
Food web
A model that shows many different feeding relationships among living things.
Decomposer
Organisms which carry out the process of decomposition by breaking down dead or decaying organisms .
Food chain
A model that shows one set of feeding relationships among living things
Coniferous
Plants that produce reproductive organs called cones.
Consumer
An organism that eats other living things to get energy; an organism that does not produce its own food ( related word: consume )
Biome
A major ecological community such as a grassland, tropical rain forest, or a desert.
Cycle
The movement of a substance through different reservoirs or stages.
Nitrogen cycle
A process in which nitrogen in the atmosphere enters the soil and becomes part of living organisms then eventually returns to the atmosphere.
Water cycle
The continual movement of water between the land, ocean, and the air through predictable physical processes.
Abiotic factor
All of the non living parts of an ecosystem.
Producer
An organism that makes its own food ; an organism that does not consume other plants or animals.
Carbon cycle
A natural cycle in which carbon compounds , mainly carbon dioxide, are incorporated into living tissue through photosynthesis and returned to the atmosphere by respiration , decay of dead organisms , and the burning of fossil fuels.
Predator
An animal that hurts and eats other animals.
Prey
An animal that is hunted and eaten by other animals.
