The primary source of energy for an animal’s cells is glucose. Glucose travels to the cells of the body through the circulation of blood. If cells do not receive the glucose they need for energy, they cannot perform their functions and can even die. Fortunately, the amount of glucose in the blood stream is regulated. Which of the following controls blood glucose levels in animals?

Responses

Neurons
Neurons

Heart Rate
Heart Rate

Hormones
Hormones

Gametes
Gametes