Answer:
A
Explanation:
Air moves down the trachea, a long straight tube in the chest. The diaphragm pulls air in and pushes it out. Behind the nasal cavity, air next passes through the pharynx, a long tube that is shared with the digestive system. Both food and air pass through the pharynx. A flap of connective tissue called the epiglottis closes over the trachea when food is swallowed to prevent choking or inhaling food. In humans, the pharynx is important in vocalization.
Swimming?
lifting weights?
walking briskly?
jumping rope?
the answer is lifting weights
if it two answer need in the blank
it have to be lifting weights and jumping rope.
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That would be true, this is all part of a good diet
