I keep getting “Ecological pyramids” questions wrong in Ecosystem. What's the trap?
assuming every ecological pyramid is upright.
The usual trap: assuming every ecological pyramid is upright. How to avoid it: energy pyramid = always upright; number/biomass can flip (one tree, many insects). Go back to the definition — pyramids of energy are always upright, but pyramids of number or biomass can be inverted.
Key point
Ecological pyramids
Common mistake
assuming every ecological pyramid is upright.
Memory tip
energy pyramid = always upright; number/biomass can flip (one tree, many insects).
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