Difference between revisions of "Trophic Level"
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#[[Secondary Consumer]]s - [[Carnivore]]s or [[omnivore]]s that eat the [[Primary Consumer|primary consumer]]s. | #[[Secondary Consumer]]s - [[Carnivore]]s or [[omnivore]]s that eat the [[Primary Consumer|primary consumer]]s. | ||
#[[Tertiary Consumer]]s - [[Carnivore]]s or [[omnivore]]s which eat [[Secondary Consumer|secondary consumers]]. These are often called [[Apex Predator|apex predators]] which are not hunted by another [[organism]]. | #[[Tertiary Consumer]]s - [[Carnivore]]s or [[omnivore]]s which eat [[Secondary Consumer|secondary consumers]]. These are often called [[Apex Predator|apex predators]] which are not hunted by another [[organism]]. | ||
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| + | |[[File:FoodChain6.png|center|600px]] | ||
| + | |- | ||
| + | | style="height:20px; width:600px; text-align:center;" |In this '''food chain''' the grass is the first [[Trophic Level|trophic level]] (a [[producer]]). The grasshopper, pied flycatcher, skunk and vulture are all [[consumer]]s. The vulture is also the last [[Trophic Level|trophic level]] and a [[Top Carnivore|top carnivore]]. It is not an [[Apex Predator|apex predator]] because it does not hunt for [[prey]], it is a [[scavenger]]. | ||
| + | |} | ||
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| + | ===References=== | ||
| + | ====AQA==== | ||
| + | |||
| + | :[https://www.amazon.co.uk/gp/product/0008158754/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158754&linkCode=as2&tag=nrjc-21&linkId=27ad53b0283feeff7fc5ae04a9e205f564 ''Trophic level, pages 323, 330-1, 360, GCSE Biology; Student Book, Collins, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/1782945563/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945563&linkCode=as2&tag=nrjc-21&linkId=9a1d023a374038e6072f33c4f3cf808b ''Trophic levels, pages 120-122, GCSE Biology; The Revision Guide, CGP, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/1471851338/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851338&linkCode=as2&tag=nrjc-21&linkId=425855d5890466e47189e1c21b67a1ea ''Trophic levels, pages 287-94, GCSE Biology, Hodder, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/0198359373/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359373&linkCode=as2&tag=nrjc-21&linkId=952a73bbb09d222ecc4b50d200679849 ''Trophic levels, pages 300-303, GCSE Biology; Third Edition, Oxford University Press, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/1782945954/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945954&linkCode=as2&tag=nrjc-21&linkId=100574c08fbbb64318256eb79ed61a76 ''Trophic levels, pages 353, 355, GCSE Biology, CGP, AQA ''] | ||
| + | |||
| + | ====Edexcel==== | ||
| + | |||
| + | :[https://www.amazon.co.uk/gp/product/1292120207/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120207&linkCode=as2&tag=nrjc-21&linkId=22455ff53961978667722edaa64c0be5 ''Trophic levels, page 178, GCSE Biology, Pearson, Edexcel ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/1782946748/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782946748&linkCode=as2&tag=nrjc-21&linkId=a4f0348fc37d0ba1bb52d27f8679581f ''Trophic levels, page 97, GCSE Biology; The Revision Guide, CGP, Edexcel ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/1782948120/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782948120&linkCode=as2&tag=nrjc-21&linkId=dedef775c6a43dbb0a609441525adac0 ''Trophic levels, pages 289, 290, GCSE Biology, CGP, Edexcel ''] | ||
| + | |||
| + | ====OCR==== | ||
| + | :[https://www.amazon.co.uk/gp/product/1782945660/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945660&linkCode=as2&tag=nrjc-21&linkId=83aa4500ad7759e7f401a1c5ba5df758 ''Trophic levels, page 62, Gateway GCSE Biology; The Revision Guide, CGP, OCR ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/0198359810/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359810&linkCode=as2&tag=nrjc-21&linkId=d768d99f1a06f7c12fab40e5aef85a55 ''Trophic levels, pages 136-139, Gateway GCSE Biology, Oxford, OCR ''] | ||
Latest revision as of 18:33, 20 December 2019
Contents
Key Stage 4
Meaning
A trophic level is an organism's stage in a food chain.
About Trophic Levels
The trophic levels are:
- Producers - Organisms which made their own food by photosynthesis.
- Primary Consumers - Herbivores that eat producers.
- Secondary Consumers - Carnivores or omnivores that eat the primary consumers.
- Tertiary Consumers - Carnivores or omnivores which eat secondary consumers. These are often called apex predators which are not hunted by another organism.
 |
| In this food chain the grass is the first trophic level (a producer). The grasshopper, pied flycatcher, skunk and vulture are all consumers. The vulture is also the last trophic level and a top carnivore. It is not an apex predator because it does not hunt for prey, it is a scavenger. |
References
AQA
- Trophic level, pages 323, 330-1, 360, GCSE Biology; Student Book, Collins, AQA
- Trophic levels, pages 120-122, GCSE Biology; The Revision Guide, CGP, AQA
- Trophic levels, pages 287-94, GCSE Biology, Hodder, AQA
- Trophic levels, pages 300-303, GCSE Biology; Third Edition, Oxford University Press, AQA
- Trophic levels, pages 353, 355, GCSE Biology, CGP, AQA
Edexcel
- Trophic levels, page 178, GCSE Biology, Pearson, Edexcel
- Trophic levels, page 97, GCSE Biology; The Revision Guide, CGP, Edexcel
- Trophic levels, pages 289, 290, GCSE Biology, CGP, Edexcel