6. Your body's internal thermostat is regulated by a. Negative feedback
b. Receptors in the skin and brain
C. positive feedback!

B. Receptors in the skin and the brain.

Hope this helps!

B) Receptors in the skin and brain

Explanation:

Your internal temp is from thermoreceptors in the skin that connect to the hypothalamus which releases a hormone to raise or lower your body temp depending on how warm or cold it is.

i think that c)gold was found there

but i am not sure