Question

which organ is primarily responsible for regulating blood glucose levels? lungs heart kidneys liver

Explanation:

The liver plays a key - role in blood glucose regulation. It stores glucose as glycogen and releases it into the bloodstream when blood sugar levels are low. It also can produce glucose through gluconeogenesis. Lungs are for gas exchange, heart for blood circulation, and kidneys mainly for filtering waste and regulating fluid balance.

Answer:

D. Liver