Question

a feedback mechanism in the human body is shown. based on this diagram, which two systems interact to maintain homeostasis? a. the immune and circulatory systems work together to circulate blood through the pancreas b. the nervous and excretory systems work together to convert glycogen into glucose c. the circulatory and endocrine system work together to keep blood sugar constant d. the nervous and reproductive system work together to produce insulin

Explanation:

The diagram shows the role of the liver and pancreas in blood - glucose level regulation. When blood glucose levels fall, glucagon from the pancreas makes the liver convert glycogen into glucose. When blood glucose levels rise, insulin from the pancreas makes the liver convert excess glucose into glycogen. This is an interaction between the endocrine (pancreas secreting hormones) and circulatory (blood carrying glucose and hormones) systems to maintain homeostasis.

Answer:

b. The circulatory and endocrine systems work together to convert glycogen into glucose