Which statement is true about body temperature?
a. the nervous system is a source of heat for the body.
b. muscles generate heat through activity.
c. sweat increases the body's temperature.
d. essential life functions can be carried out at any temperature.

Acar company is testing seatbelts using crash test dummies. the company finds that when cars come to a sudden stop, the crash test dummies' bodies continue to move forward. the seat belt keeps the crash test dummies from hitting the back of the seat in front of them. why do the crash test dummies' bodies continue to move forward even though the car stopped? a. the friction opposing their bodies' movement keeps them in motion. b. the inertia of their bodies keeps them in motion. c. the forward acceleration of the car keeps them in motion. d. the gravity pulling on the car keeps them in motion.

Where is most of the fresh water on earth found a in the ocean b in glaciers and in ice caps c in rivers d in the soil

Which type of neuron stimulates muscles to contract?