Answer:
primary structure
Explanation:
This is the amino acid chain
It is C. He said that they where formed in layers.
<span>Non-infectious diseases are those that are not contagious because they can't be spread from one person to another.</span> Non-infectious diseases are caused by factors, like genetics, environment, and lifestyle behaviors.
<span>Osteoarthritis<span> or degenerative arthritis is a joint disease caused by cartilage loss in a joint and can be caused by aging, heredity, and injury from trauma or disease.</span></span>
1 because the polar ice caps may begin to melt
