True, but self-discipline means to do something you know you should do but don't want to do and do it anyway.
<span />
According to the Red Cross, people who have tattoos can donate blood. It's just that they would have to wait for 5 or 6 months after getting a tattoo before donating their blood. Same thing if you get your ears pierced.
I believe it is called the <span>meniscus. I hope this helped!</span>
Answer:
Blood calcium levels.
Explanation:
Bone acts as the main connective tissue of the body. The bone provides the base for the attachment of the muscles and acts as the hard substance of the body.
Bone remodeling is the formation of the new bone tissue and the removal of the mature old bone. The bone helps in the bodily movement. They also regulates the phosphate and calcium level in the body as the main component of the bone is calcium.
Thus, the correct answer is option (D).