Answer:
Insulin is an hormone that keeps blood glucose levels from getting too low or too high. After digestion, insulin is released from the pancreas into your bloodstream. What systems are involved in maintaining blood sugar levels?
Circulatory and Endocrine
Explanation:
Circulatory and Endocrine are the ones involved in maintaining blood sugar levels where the endocrine secrets the hormone while the circulatory ensure the delivery to the targeted organ or part of the system
