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

Ex Input:
Ecological pyramids can demonstrate the decrease in energy, biomass or numbers within an ecosystem.

Ex Output:
What can demonstrate the decrease in energy, biomass or numbers within an ecosystem?

Ex Input:
The thalamus helps to regulate consciousness, arousal, and sleep states.

Ex Output:
What helps to regulate consciousness, arousal, and sleep states?

Ex Input:
Insight learning is based on past experience and reasoning.

Ex Output:
What type of learning is based on past experience and reasoning?