Trophic LevelsPond PowerPre-Field trip Lesson
Below are instances of the trophic level in one certain food chain:
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Grass produces its very own food v photosynthesis. The is aprimary producer in ~ the bottom that the food chain. Major producers are the first trophic level.
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Grasshoppers space herbivores that eat grass. Therefore, they room one trophic level greater than grass. They are taken into consideration primary consumers. Primary consumers room the second trophic level.
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Toads eat grasshoppers. Therefore, they room one trophic level greater than grasshoppers. Lock are considered secondary consumers. Second consumers room the third trophic level.
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Hawks room carnivores that eat toads. As such they are one trophic level higher than toads. They are thought about tertiary consumers. Tertiary consumers are the 4th trophic level. Tertiary consumers often tend to be in ~ the optimal of the food chain. They have few, if any, predators.
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Bacteria, fungi and also other organisms feed off of dead matter. This organisms are well-known as decomposers.

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They transform the dead matter ago into nutrients. Decomposers are at both the beginning and also end of the food chain. Therefore, decomposers space not assigned a trophic level.
Photograph credits:

Miller, B. (Photographer). Closeup that dark green knives of grass. . Re-cover fromhttp://www.freestockphotos.biz/stockphoto/1581

Siers, W. (Photographer). Grasshopper family. . Retrieved fromhttp://www.freedigitalphotos.net/images/Insects_Spiders_and__g70-Grasshopper_Family_p3522.html

FreeDigitalPhotos.net. (Photographer). Common Toad. . Retrieved native http://www.freedigitalphotos.net/images/Reptiles_And_Amphibi_g87-Common_Toad_p609.html

Noffsinger, L. (Photographer). Red Tailed Hawk. . Retrieved indigenous http://www.freedigitalphotos.net/images/Birds_g52-Red_Tailed_Hawk_p7170.html

jscreationzs. (Photographer).

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Bacteria Cell. . Re-cover fromhttp://www.freedigitalphotos.net/images/Diseases_and_Other_M_g287-Bacteria_Cell_p15870.html