Answer: Insulin and glucagon
Step-by-step explanation:
Insulin and Glucagon are two hormones of the endocrine system which functions in a opposite way.
The function of the hormone insulin is to decrease the amount of sugar in the blood which increase after food. The amount of glucose in the blood 115-120 mg/dL. Lower than this level of glucose in blood triggers the insulin production.
Whereas, opposite to this hormone is the glucagon which decreases the level of sugar in the blood. The blood glucose level is goes below 115-120 mg/dL then the production of glucagon takes place in the body.
So one of the hormones is used to increase the blood sugar level and other is used to decrease the blood glucose level.