Question:
The pyramid that CANNOT be inverted in a stable ecosystem, is the pyramid of
The pyramid that CANNOT be inverted in a stable ecosystem, is the pyramid of
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Energy is lost at each trophic level, so the energy pyramid is always upright.
Updated On: Nov 12, 2026
- Number
- Energy
- Biomass
- Both biomass and number
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The Correct Option is B
Solution and Explanation
Step 1: Understanding the Concept
Ecological pyramids show numbers, biomass or energy at each trophic level.
Step 2: Energy flow
At each transfer, most energy is lost as heat in respiration, so only about \(10\%\) passes to the next level.
Step 3: Compare pyramids
The number pyramid can be inverted (one tree and many insects) and the biomass pyramid can be inverted in the sea (small phytoplankton and larger zooplankton). The energy pyramid is always upright.
Final Answer:
The pyramid of energy cannot be inverted. \[ \boxed{\text{(B) }\text{Energy}} \]
Ecological pyramids show numbers, biomass or energy at each trophic level.
Step 2: Energy flow
At each transfer, most energy is lost as heat in respiration, so only about \(10\%\) passes to the next level.
Step 3: Compare pyramids
The number pyramid can be inverted (one tree and many insects) and the biomass pyramid can be inverted in the sea (small phytoplankton and larger zooplankton). The energy pyramid is always upright.
Final Answer:
The pyramid of energy cannot be inverted. \[ \boxed{\text{(B) }\text{Energy}} \]
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