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Food Web

Key Stage 3

ProductFoodChain.png

Meaning

A food web is a diagram made from many food chains linked together.

About Food Webs

Food webs always start with a producer.
The arrows in a food web always point from the food to the animal that eats it.

Examples

These two food chains can be combined into a food web.

FoodChain8.png
This a food chain.
FoodChain7.png
This a food chain.
FoodWeb1.png
This food web has been made by combining the two food chains.
FoodWeb2.png
This food web has trees, grass and bushes as producers at the bottom and Lions and Vultures as the top carnivores.
FoodWeb3.png
This food web has seaweed and phytoplankton as producers at the bottom and Blue Whales and Killer Whales as the top carnivores.

Key Stage 4

Meaning

A food web is a diagram which shows the feeding relationship between many organisms in a community.

About Food Webs

Food webs always begin with the first trophic level (a producer).
The arrows in a food web always show the direction of energy transfer between the trophic levels.
FoodWeb2.png
This a food web shows the feeding relationships between organisms in a community that live in a savanna habitat.
FoodWeb3.png
This a food web shows the feeding relationship between organisms in a community that live in the Southern Ocean and Antarctica which is both an arctic and an ocean habitat.

References

AQA

Food web, page 322, GCSE Biology; Student Book, Collins, AQA
Food webs, page 257, GCSE Combined Science Trilogy; Biology, CGP, AQA
Food webs, page 317, GCSE Biology, CGP, AQA

Edexcel

Food webs, page 125, GCSE Combined Science, Pearson Edexcel
Food webs, page 177, GCSE Biology, Pearson, Edexcel
Food webs, page 281, GCSE Biology, CGP, Edexcel

OCR

Food webs, page 131, Gateway GCSE Biology, Oxford, OCR
Food webs, page 62, Gateway GCSE Biology; The Revision Guide, CGP, OCR