They are most mainly consists of "Keratin"
So, option B is your answer.
Hope this helps!
Answer:
a
Explanation:
A carcinogen is another way of describing a substance that can cause cancer, while a biopsy is a type of operation that examines a person's tissue to see if they have a certain disease. Hope this helps!
An important aspect of my teammates would be that they are able to play as a team and play in a team setting, that they are able to consider the team and success of the team over their own success, as well as their own glory. These are two main things important in teamplay and team sports.
Answer:
The calories in food come from carbohydrates, proteins, and fats. A gram of carbohydrate contains 4 calories. A gram of protein also contains 4 calories. A gram of fat, though, contains 9 calories — more than twice the amount of the other two.
Explanation:
Answer:
The heart is made of three layers of tissue. Endocardium, the thin inner lining of the heart chambers that also forms the surface of the valves. Myocardium, the thick middle layer of muscle that allows your heart chambers to contract and relax to pump blood to your body.
Explanation:
