Which meninx surrounding the central nervous system contains blood vessels that nourish the neural tissue?

The pia mater is a delicate membrane and is one of the three meninges found in mammals and is responsible for nourishing neural tissue such as the brain. Blood vessels that go through the pia mater extend to capillaries that transport blood to the brain.

D. store energy for use by living organisms

Explanation:

Starch and glycogen are polymers made up of several units of glucose. Starch and glycogen functions to store energy that is used by living organisms.

Starch is a stored form of energy found in plants whereas glycogen is a stored form of energy in animals.

Hence, the correct option is "D".