Answer :
At the point when glucose becomes low, the level of insulin decreases and different cells in the pancreas discharge glucagon, which makes the liver transform put away glycogen once more into glucose and discharge it into the blood. This conveys glucose levels move down to typical. The digestive and endocrine work together to maintain blood sugar levels, the digestive will be the one to carry the glucose and endocrine will process it. The answer is C.
The correct answer is D. The digestive, circulatory, endocrine and nervous system all work together in maintain blood glucose levels. Digestive system is responsible for metabolic process for breaking down food in utilizable form. Circulatory systme helps is dispensing glucose into different parts of the blood. Endocrine is responsible for release of hormones for controlling blood glucose levels. Nervous system is responsible for release of chemical signals for hunger/satiation.