Trophic LevelsPond PowerPre-Field trip Lesson
Below are instances of the trophic level in one particular food chain:
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Grass produces its very own food v photosynthesis. It is aprimary producer at the bottom of the food chain. Major producers are the first trophic level.
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Grasshoppers are herbivores the eat grass. Therefore, they space one trophic level higher than grass. Lock are taken into consideration primary consumers. Major consumers room the second trophic level.
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Toads eat grasshoppers. Therefore, they space one trophic level higher than grasshoppers. They are thought about secondary consumers. Secondary consumers room the 3rd trophic level.
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Hawks room carnivores that eat toads. Because of this they are one trophic level greater than toads. They are considered 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 turn off of dead matter. This organisms are known as decomposers.

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

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

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

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

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

jscreationzs. (Photographer).

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