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

[Q]: The size and symmetry of a beetle’s or an elk’s antlers or a grasshopper’s song communicate rather clearly their state of health.
[A]: The size and symmetry of a beetle’s or an elk’s antlers or a grasshopper’s song communicate rather clearly their state of what?


[Q]: Producers in an ecosystem generally get their energy from the sun.
[A]: Where do producers in an ecosystem generally get their energy from?


[Q]: Animals that defend their area are generally known as territorial.
[A]:
Animals that defend their area are generally known as what kinds of animals?