Answer:
3.
Explanation:
there are three things that make up any nucleus:
Protons
Neutrons
Electrons
The amount of each will very by what type of atom it is, but the things that make up a nucleus do not change when in the body.
Juglar Vein
This vein drains blood from head to heart.
Sub-clavian Vein
This vein drain blood from shoulder to heart.
The best answer to fill in the blank would be A).
Answer:
All the above
Explanation:
If I understand the way the question is posed, the answer would be all of the above.