Answer:
Shouldn't you know why yo're taking the course? Others can't answer for you.
Explanation:
Second hand smoking is actually worse than first hand smoking, the person around the smoker is actually inhaling the smoke into their lungs. When tht stops eventually your risk of of becoming ill will decrease
Answer:
No, it's not safe
Explanation:
Smartphones emits high levels of radiation which can mess up your sleep. It can also cause difunction or unbalance to your biological clock (which is a group of cells in the hypothalamus that respond to light and dark signals). It could also blow up on your face.
White blood cells that produce antibodies - Lymphocytes
Systems of blood vessels that are responsible for removal of bacteria from the blood stream - lymphatic system
Outer layer of the skin - epidermis
Inner layer of the skin - dermis
