Insulin Is a Protein Hormone That Helps Cells Use Glucose

Multiple Choice

Insulin is a protein hormone that helps cells use glucose.In type I diabetes,insulin-making cells of the pancreas are attacked and destroyed.The preceding information is an example of the

A) digestive,circulatory,and excretory systems affecting one another.
B) importance of the excretory system to remove wastes and other toxins.
C) importance of only one system needed to perform a function.
D) endocrine,digestive,circulatory,and immune systems affecting each other.