Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
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Question: Potential energy type of energy is possessed by autumn leaves before they fall.

Answer: What type of energy is possessed by autumn leaves before they fall?


Question: 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.

Answer: 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?


Question: Above the meristem, the rest of the root is covered with a single layer of epidermal type of cells, which may have root hairs.

Answer:
Above the meristem, the rest of the root is covered with a single layer of what type of cells, which may have root hairs?