Ecological Pyramids — Prelims Questions

Which of the following ecological pyramids can *never* be inverted in any ecosystem?

In a grassland ecosystem, if the producers have $10,000,\text{J}$ of energy, how much energy would be available to the secondary consumers?

An inverted pyramid of biomass can be observed in which of the following ecosystems?

Which of the following statements about ecological pyramids is INCORRECT?

If a food chain consists of Grass $\rightarrow$ Deer $\rightarrow$ Tiger, which of the following represents the correct order of decreasing biomass?

Which of the following statements best describes the concept of 'standing crop' in an ecosystem?