Pyramids of Biomass
A pyramid of biomass represents the total dry mass of all the organisms at each trophic level.
Why is the base of a pyramid of biomass always the largest bar?
What is Pyramids of Biomass?
"A pyramid of biomass is a graphical representation of the total amount of living or organic matter in each trophic level of an ecosystem."
In a food chain, which organism is always at the start?
Why are pyramids of biomass usually more reliable than pyramids of numbers when comparing trophic levels?
Why does biomass decrease as you move up a food chain?
In a food chain, which organism is always at the start?
Visualising Energy
The width of the bar represents the biomass at that level.
Producers are always at the bottom.
Much biomass is lost between levels, which is why pyramids are rarely more than 4-5 stages high.
Biomass is essentially the biological material that makes up an organism.
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