TASK DEFINITION: Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
PROBLEM: Hemodialysis has a patient's blood pass through a length of tubing that travels through an artificial kidney machine.

SOLUTION: Which form of dialysis has a patient's blood pass through a length of tubing that travels through an artificial kidney machine?

PROBLEM: Adding the number of protons plus the number of neutrons in an atom decides its approximate mass; atomic number is another word for this value.

SOLUTION: Adding the number of protons plus the number of neutrons in an atom, decides it's approximate mass, what is another word for this value?

PROBLEM: Roundworms exemplify organ-level organization, where two or more types of tissues work together to perform a particular function as an organ.

SOLUTION:
Roundworms exemplify what type of organization, where two or more types of tissues work together to perform a particular function as an organ?