Question

1. which hormone signals body cells to take in glucose and reduces the level of sugar in the blood?

testosterone
glucagon
insulin

Explanation:

Insulin is a hormone produced by the pancreas. Its main function is to signal body cells (such as muscle, fat, and liver cells) to take in glucose from the bloodstream. This uptake of glucose by cells reduces the level of sugar (glucose) in the blood. Testosterone is a male sex hormone involved in the development of male secondary sexual characteristics. Glucagon has the opposite effect of insulin; it signals the liver to release stored glucose into the bloodstream, increasing blood - sugar levels.

Answer:

C. insulin