TASK DEFINITION: Given a scientific question, generate a correct answer to it.
PROBLEM: 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?

SOLUTION: atomic number

PROBLEM: The pion can only be created by violating the conservation of what?

SOLUTION: mass-energy

PROBLEM: Which part of a neuron contains the nucleus and most of the major organelles?

SOLUTION:
cell body