The soft core is called medulla
The lungs are an important part of the respiratory system,lungs allow you to breathe. The lungs are part of the respiratory system and they include airways that carry air in and out of your lungs, blood vessels surrounding the lungs, and the muscles that help you breathe.
Yes yes it is very much so
I think it might be C because a 3500 calories is one pound so if he wants to lose 15 pounds half of 3500 is 1750 so if he'd be in a diet of 500 calories intake a day that would accomplish his task or even make it expanded and lose even more weight depending on what he eats.
