Answer:
The mass number of an atom is its total number of protons and neutrons. Atoms of different elements usually have different mass numbers , but they can be the same. For example, the mass number of argon atoms and calcium atoms can both be 40.
Explanation:
The elements are Carbon, Hydrogen, Oxygen, and Nitrogen.
You just got vectored B) uhh I hope someone can help
Answer:
Hey, I answered your last question(the same one), so you should check the last question you posted.
Answer:
a)Osteoclasts
b)Osteoblasts
Explanation:
a) destroys the bone matrix
b) have osteogenic functions