Which one is not one of the sub-components of the cardio-respiratory system? heart blood lungs pancreas

Aperson who doesn't have enough calcium in his or her diet is at risk for developing bones that are weak and break easily. this condition is known as  a.  osteoporosis.    b.  crohn's disease.    c.  celiac disease.    d.  hemophilia.

What body systems are involded in sleep homeostasis

Organize the stages of tissue repair in the order in which they occur, starting with the first stage at the top.