Identify the advances and the controversies seen in medicine in recent years.

Advances: Increased Lifespan

Immunity to more diseases than ever before

Cure for most diseases leading to an more healthier environment.

Controversies:Stem cell  research project being ordained ungodly are some of the medicines being ummm you could say unnatural with harmful chemicals in it.

increases in demand are shown by a shift to the right in the demand curve. this could be caused by a number of factors, including a rise in income, a rise in the price of a substitute or a fall in the price of a complement.

which the answer is:

b