B) because sitting isn't really moving
The answer is: 13) B 14) C 15) A
For this answer I would go with D. Retinalogic. It is not a vitamin.
Answer:
A
Explanation:
Osteogenic cells the only cells capable of the bone to undergo mitosis (which makes sense as we need bones to function normally). These kind of cells are the ones responsible of growth and repair in the body (like when you break a bone and how takes some weeks to heal is because of that ability).
