Chemical change because changing is chemical and as your food goes down, it doesnt come out looking the same way it did when it went in
The nucleus, this is for Eukaryotic cells.
Answer: Protons
Explanation: Every atom is defined by its protons every element. So if it has 1 proton its hydrogen no matter what. If it has 2 protons its helium no matter what and so on. So if you know the number of protons you know the element.
The atomic number tells you the number of protons that are in the core of a particular element.
The answer is the cell wall
