Trophic Levels - Primary Producers, Primary Consumers, Secondary And Higher-order Consumers, Omnivores - Detritivores
organisms feed food dead
Trophic levels describe the various stages within ecological food chains or webs. Examples of trophic levels, all of which will be described below, are primary producers, primary consumers or herbivores, and secondary and higher-level consumers, or predators.
Food webs are based on the productivity of photosynthetic organisms, such as blue-green bacteria, algae, and plants. These are autotrophic organisms, which are capable of fixing some of the diffuse energy of solar radiation into simple organic compounds. This fixed energy can then be utilized by the primary producers to metabolically synthesize a diverse array of biochemicals and to support the growth of these organisms.
The solar energy fixed by photosynthesis is the energetic base that all heterotrophic organisms utilize to achieve their own productivity. Heterotrophic organisms include any animals and microorganisms that feed on the living or dead biomass of plants, or that of other heterotrophs. Heterotrophs include herbivores that feed directly on autotrophs, carnivores that feed on other animals, detritivores that feed on dead biomass, and omnivores that feed on any or all of the above.
Therefore, the food web is a diverse assembly of organisms that are ecologically linked through their feeding relationships, and is ultimately based on the fixation of solar radiation through photosynthesis.
All organisms eventually die, and detritivores are a class of organisms that feed on their dead bodies. Actually, detritivores can themselves be divided into a food web, based on the feeding relationships among the species. In this sense, primary detritivores feed directly on the dead biomass, while secondary detritivores feed on these direct consumers of detritus.
User Comments
about 4 years ago
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about 1 year ago
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about 1 year ago
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about 1 year ago
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over 3 years ago
well this worked out good studyguide is done from this site and my teacher will never know! thanks
about 1 year ago
babar
pretty good but it needs mor information
over 2 years ago
Alex
This helped me a little not really because I need examples for Primary Consumers Secondary Consumers and Tertiary Consumers
over 3 years ago
it has a really good information & i really needed that for school
over 3 years ago
Better than my biology book.
about 4 years ago
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10 months ago
Abel Torres
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12 months ago
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about 3 years ago
this really helped me since i didn't know what primary consumers and secondaary consumers meant
about 3 years ago
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over 3 years ago
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about 4 years ago
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8 months ago
kalani
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8 months ago
kalani
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9 months ago
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10 months ago
Abel Torres
This didnt help with my question and report at all,this site sux!
10 months ago
Abel Torres
This didnt help with my question and report at all,this site sux!
10 months ago
Abel Torres
This didnt help with my question and report at all,this site sux!
10 months ago
Abel Torres
This didnt help with my question and report at all,this site sux!
10 months ago
Abel Torres
This didnt help with my question and report at all,this site sux!
10 months ago
Abel Torres
This didnt help with my question and report at all,this site sux!
10 months ago
Abel Torres
This didnt help with my question and report at all,this site sux!
10 months ago
Abel Torres
This didnt help with my question and report at all,this site sux!