Name THREE different hormones.

1. Insulin: Insulin is a hormone produced by the pancreas that regulates the blood glucose levels. It helps in the absorption and utilization of glucose by cells, thereby lowering blood sugar levels.

2. Estrogen: Estrogen is a female sex hormone primarily produced by the ovaries. It plays a significant role in the development of sexual characteristics in females, regulation of the menstrual cycle, and maintenance of pregnancy.

3. Testosterone: Testosterone is a male sex hormone primarily produced by the testes. It is responsible for the development of male sexual characteristics, including facial hair, deepening of voice, muscle and bone growth, and sperm production.