<span>The number of protons plus the number of neutrons is called the mass number.</span>
The answer is : B) Inner Ear.
It is the central nervous system that takes charge of the body's involuntary functions outside conscious awareness. It is this system that is responsible for all of the body's involuntary acts, such as breathing, blinking, etc.
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It is from adult bone marrow.
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- Hannah ❤