BI-1904
Pyramids of numbers and biomass
Biology · Secondary 4 · Medium · Pyramids of numbers and biomass
A pyramid of numbers for a woodland shows a very wide bar for insects feeding on one oak tree. Which advantage does a pyramid of biomass have over a pyramid of numbers in this case?
- It always has the same shape as a pyramid of numbers.
- It shows the energy content of each organism directly.
- It shows the total mass of organisms, so one large tree can form a broad base.
- It avoids the need to measure any organisms.
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