Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

[Q]: Starches are complex carbohydrates that are the polymers of glucose.
[A]: What complex carbohydrates are the polymers of glucose?


[Q]: The discovery of ribozymes nullified the idea that all biological catalysts are proteins.
[A]: What nullified the idea that all biological catalysts are proteins?


[Q]: Ecological pyramids can demonstrate the decrease in energy, biomass or numbers within an ecosystem.
[A]:
What can demonstrate the decrease in energy, biomass or numbers within an ecosystem?