Medical diagnosis is the process of determining which disease or condition explains a person's symptoms and signs.It basically enables the doctor understand what disease is the patient going through.
Diagnosis is often challenging, because many signs and symptoms are nonspecific and different diseases also have them.
For example, redness of the skin is a sign of many disorders and thus does not tell the healthcare professional what is wrong.
The statement about bipolar disorder which is true would be that periods of depression usually last longer than do periods of mania - b. This, however, is dependant on the person and whether/how he has been diagnosed and in which time of lie as it may vary.
Answer:
It's sight
Thus, sight just is that power by which we are aware of the colors of material things.
What one means by an external sense is obvious: one of the five means by which we are directly aware of the world around us. They are sight, hearing, smell, taste and touch.