Answer:
No, if "PRN" is on any medication bottle is usually means to use when needed for a specific situation.
Explanation:
True, that's why its known as a ''complex trait'', which mean that is usually caused by a mutation in gene.
Answer:
B Heart and lungs
Explanation:
The thoracic cavity is another term for the chest cavity. It is enclosed by the ribs, spine, and breast bone, and is separated from the abdomen by the diaphragm.
It contains the heart, lungs, and the esophagus, and the blood vessels that supply them.
A. being oxygenated in the alveoli, where oxygen is supposed to attach to the red blood cells (in the lungs)
