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

Q: Cancer occurs most often in adults over fifty age.

A: Cancer occurs most often in adults over what age?
****
Q: Human facial expressions can communicate emotions.

A: What can human facial expressions communicate?
****
Q: The food particles are caught by the collar of the choanocyte and brought into the cell by phagocytosis process.

A:
The food particles are caught by the collar of the choanocyte and brought into the cell by what process?
****