A method or procedure consisting of testing experimenting, and measuring trying to prove a hypothesis.
Hair is a keratinous filament growing out of the epidermis. It is primarily made of dead, keratinized cells. Strands of hair originate in an epidermal penetration of the dermis called the hair follicle. The hair shaft is the part of the hair not anchored to the follicle, and much of this is exposed at the skin’s surface. The rest of the hair, which is anchored in the follicle, lies below the surface of the skin and is referred to as the hair root. The hair root ends deep in the dermis at the hair bulb, and includes a layer of mitotically active basal cells called the hair matrix. The hair bulb surrounds the hair papilla, which is made of connective tissue and contains blood capillaries and nerve endings from the dermis.
Answer:
Digestive system, small intestine, smooth muscle tissue, muscle cell
Explanation:
Because the cell is smallest (muscle cell) and then cells combine to make tissues (smooth muscle tissue) and then organs (small intestine) to organ systems (digestive system).
The correct answer to your question is Tobacco Smoke. Hope this helps you out please let me know.
Definition of Carcinogens- <span>a substance capable of causing cancer in living tissue. Also known as black smoke in the lungs.</span>
