Trophic Level - menihek.ca

Trophic Level - menihek.ca

Trophic Level A way of categorizing living organisms according to how they gain their energy The first trophic level would be producers and each higher level would contain heterotrophs

Primary consumer An organism that relies directly on producers or autotrophs for its source of energy They are found in the second trophic level

Example: rabbit, deer, moose Secondary consumer An organism that relies directly on primary consumers for its source of energy They are found in the third trophic level

Example: fox, pine marten Tertiary consumer Decomposer

An organism that feed on detrius, in the process releasing nutrients to the soil and water Example: vulture,

fungi, bacteria Food web A diagram showing the connections among everything that organisms in a location eat and are eaten by. A food web

is more complex than a food chain, by showing more connections. Food chain A step by step sequence linking

organisms that feed on each other, starting with a food source such as a producer

Producer/autotroph An organism that uses energy and raw materials to make its own food, whether from photosynthesis or chemosynthesis Consumer/heterotroph

An organism that must eat producers or other consumers to survive Herbivore An animal that eats plants

Carnivore An animals that feeds on other animals Omnivore An animal that eats both plants and animals

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