Epithelial, Connective, Muscular, and Nervous
Answer:
Insulin and glucagon
Explanation:
Insulin and glucagon are hormones that help regulate the levels of blood glucose, or sugar, in your body.
Myosin and actin protein filaments attach to each other . Calcium ions release into myofibrilles . Myosin filaments pull on the actin filaments
The top layers are the youngest and the farther you go down, the older they get. I’ll put it in exact order in a minute.
