Answer:
Alanine to lysine.
Explanation:
Mutation may be defined as the sudden, heritable change in the genome sequence of an organism. Two main types of mutation are chromosomal mutation and point mutation.
The mutation has occurred in which the arginine is replaced by alanine. The mutation that can restore to wild type is the conversion of alanine with lysine. Since both arginine and lysine are basic amino acids. They both shows almost similar function and the replacement of lysine with alanine shows the wild type activity.
Thus, the answer is alanine to lysine.
Population decreases by 15.
Birth rate means more population (positive), death rate means less population (negative), immigration means more (positive), and emigration means less (negative). So, just add and subtract the appropriate numbers:

Negative 15 people means that the population decreases by 15.
Answer:
<h2>The pancreas releases insulin.</h2>
Explanation:
Pancreas release both insulin as well as glucagon, but there release depends on different glucose levels in bloodstream. When blood glucose concentration increases, in response to it Insulin is released by the beta cells in the islets of Langerhans.
Role of insulin: i) it lower glucose levels in the bloodstream, ii) it also promote the storage of glucose in muscle, liver and other parts o the body .
While alpha cells in the islets of Langerhans produce glucagon when glucose concentration decreases in the blood.
<span>A Telescope That Uses A Converging Lens To Collect Light</span>
Your answer should be C) Sodium-Potassium Pumps.