The answer is A - Sac Fungi
Answer:
A scientific theory is an explanation of an aspect of the natural world that can be repeatedly tested and verified in accordance with the scientific method
Explanation:
A. Immune system
It helps our bodies fight everything that comes in our path.
6 protons is the amount of electrons so it would be... 6 protons 6 neutrons 6 electrons in all so it is probably 18 protons but im not to sure but..idk good luck
The center of an atom is a nucleas. you can find this answer in most textbooks on science
