6.Why do you think the brain needs SO MUCH of the body's oxygen and blood flow, even though it is so little?

because brain is one of the main part of the body  which control our whole body function and it contains our whole life memories as a storage.

Explanation:

the transfer for conduction is the heat transfering from the liquid to the spoon

the transfer for convection is the heat rising from the liquid to the air

the transfer for radiation is the heat going through the sides of the cup and to the air

at least that is what i would do