Answer:
There are three types of endocrine cells;
Explanation:
; alpha cells which secrete glucagon, beta cells which secrete insulin, and delta cells which inhibit the secretion on glucagon and insulin: Glucagon increases the blood glucose level by stimulating the liver causing convert Glycogen into Glucose (sugar).
The graph is showing us the tide height in feet in the left side and the hight up and down.
Answer:
naturally living organisms
