Food chains and Biomass

Overview of food chains and pyramids of biomass.

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Food chains and Biomass.

Biomass is the mass of living things. At each stage of a food chain it decreases because of waste etc. The biomass can be drawn to scale and shown as a pyramid of biomass.

Reducing energy losses in food chains:

  • shorter food chain.
  • place animals in a warm environment.
  • reduce movement, less space to move around in.

Grass --------> Rabbit --------> Stoat --------> Fox

Biomass and energy are lost at every stage of a food chain due to...

  • energy and materials being lost in an organism's faeces (waste).
  • energy released through respiration being lost in heat energy and movement.
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Comments

Saif

that was really usefull

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