BI-707
Pyramids of numbers and biomass
Biology · Secondary 3 · Hard · Pyramids of numbers and biomass
A farmer studies a grassland food chain:
Grass grasshoppers frogs.
He finds the total dry biomass to be:
- Grass: 900 g m
- Grasshoppers: 90 g m
- Frogs: 30 g m
Which statement about the pyramid of biomass is correct?
Grass grasshoppers frogs.
He finds the total dry biomass to be:
- Grass: 900 g m
- Grasshoppers: 90 g m
- Frogs: 30 g m
Which statement about the pyramid of biomass is correct?
- The base bar (grass) is narrower than the bar for grasshoppers
- The frogs form the widest bar in the pyramid of biomass
- The pyramid of biomass is upright, with grass at the widest base
- The pyramid of biomass is inverted, with frogs at the widest base
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