It is true that physical health refers to the degree if functionality of a person's body. It is related to whether your body and its internal organs are healthy and functional enough in order to do what they were meant to do, and not fail to produce results they were created for. There is also mental health, but that refers to your state of mind and the brain in general.
Answer:
Calcium
Explanation:
Calcium is essential to young children because it directly related to growth and bone density
Appetite is not linked to hunger since appetite is the activity and drive in order to eat whereas hunger is the physical and mental state in which a person needs to eat.
Also appetite is linked to many unhealthy behaviors that can result to other symptoms of eating disorders which causes deletrious effects on one's mental and biological state.
Superior/inferior vena cava - right atrium - right ventricle - pulmonary artery - lungs(for oxygenation) - pulmonary vein
I guess its A because the key word it MAD and it seems the most aggressive? Correct me if I'm wrong
