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

Input: Consider Input: Muscle type of cell function relies on microfilaments, which are the actin components of the cytoskeleton.

Output: What type of cell function relies on microfilaments, which are the actin components of the cytoskeleton?


Input: Consider Input: 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.

Output: 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?


Input: Consider Input: Interstitial fluid are all hormones secreted into before entering the circulatory system.


Output: Where are all hormones secreted into before entering the circulatory system?