<span>1.) Deletions: A percentage of the chromosome is lost
or removed. </span>
<span>2.) Duplications: A share of the chromosome is
doubled, which results into an extra genetics.</span>
<span>3.) Translocations: A portion of a chromosome
is relocated to an alternative chromosome.</span>
Answer:
B. Proteins
Explanation:
Salivary amylase is an enzyme that starts the breakdown of starch in the mouth. Gastric glands of the stomach secrete gastric juice, which contains HCl to kill bacteria and denatures proteins, intrinsic factors, and the enzyme pepsin. The chief cells of gastric glands secrete pepsinogen (an inactive form of pepsin).
Pepsin begins the digestion of proteins in the stomach. It breaks down certain peptide bonds between amino acids and thereby, breaks down protein chain into smaller peptide fragments. Pepsin requires a very acidic environment of the stomach (pH 2) and becomes inactive at a higher pH.
Explanation:
When blood glucose levels increase above set point, the hormone insulin, which is produced in the beta cells of the Islets of Langerhans in the pancreas, is secreted into the bloodstream. The insulin binds to insulin receptors on cell membranes of liver cells, which results in accelerated conversion of glucose to glycogen, and a slower conversion of glycogen to glucose. This caused blood glucose levels to fall back to normal range again.
Cephalopods have a closed circulatory system where blood is transported through vessels. However, most other mollusks have an open circulatory system where blood is not always in vessels, but is spread over the organs.
