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Ecosytem Energy

Energy flow in ecosystems; food chains & food webs

Energy The power needed for an an organism to grow, reproduce, and move.
Matter The nutrients that are recycled through a food web
Energy pyramid A diagram that shows how energy is transferred through an ecosystem.
Food web All of the feeding relationships in an ecosystem
Food chain One set of feeding relationships in an ecosystem
Trophic levels The different feeding positions of organisms in a food chain or food web.
Biomass The amount of living matter in a trophic level.
Biomagnification The increase in toxins as it is passed along the different trophic levels of a food chain
Autotroph or Producer An organism that makes its own food using energy
Consumer or Heterotroph An organism that relies on other organisms for food
Chemotroph An organism that makes food using chemical energy
Herbivore An organism that eats plants
Omnivore An organism that eats plants and meat
Carnivore An organism that eats meat
Primary consumers Organisms in the first feeding level of an energy pyramid; the herbivores
Secondary consumers Organisms in the second level of an energy pyramid; the carnivores or omnivores
Tertiary consumers Organisms in the third feeding level of an energy pyramid; the carnivores and omnivores.
Decomposers Organisms like bacteria and fungi that break down other organisms and recycle the matter
Population All of the individuals of the same species living in an area
Community All of the populations of organisms living an area
Ecosystem All of the living organisms in an area and the nonliving parts that affect them
Created by: nbiegel



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