Blood location b it going into the heart and carries o2 with it from the lungs
The skin is the largest organ of the body. It has three main layers, the epidermis, the dermis and the subcutaneous layer.
-Functions of the skin
-Provides a protective barrier against mechanical, thermal and physical injury and hazardous substances.
-Prevents loss of moisture.
-Reduces harmful effects of UV radiation.
-Acts as a sensory organ (touch, detects temperature).
-Helps regulate temperature.
-An immune organ to detect infections etc.
-Production of vitamin D.
“A body will stay at rest or in uniform motion unless acted upon by unbalanced forces” this is Newton’s first law of motion, and is most commonly referred to in physics
With any medicine your body becomes more tolerant, so I would say yes