<span>You can have an infinite amount of proteins from only a few amino acids, it would be all in the way they are tied together. </span>
Answer:
Ciliated cells are adapted in the respiratory tract to form an epithelial lining of coordinated metachronal ciliary activity that provides the propelling force for the transport of mucus along the airways.
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I believe the answer is environmental pollution
Answer:
Option A. Stem cells could potentially be used as a source of renewable healthy cells and tissues.
Explanation:
Stem cell is a kind of cell which provides new healthy cells where it is needed in the body of organisms. Stem cells are continuously dividing and make new cells. These cells has the ability to change their structure according to other body cells and take the place of cell which are damaged.