Through which of the following body parts do humans take in the energy they need to survive?. A - mouth. B - intestines. C - skin. D - stomach.

Humans need energy to survive. The first body part that takes in the energy is the mouth. Food is consumed through the mouth and combined with saliva which through several processes, breaks down and passes through the body and is converted to energy.

Nutrients and energy from the food (as well as water) we eat are absorbed in the intestines.