Greetings!
The heart consists of exactly 3 layers:
The Epicardium (external layer)
The Myocardium (middle layer)
The Endocardium (inside layer)
Hope this helps!
~Autumly
The answer is C. Unexplainable muscle weakness or pain.
Glad to help!
Answer:
negative energy balance
Explanation:
Negative energy balance occurs when caloric intake is lower than energy expenditure