It really depends. i have never gotten a flu shot and still never got the flu.
I do believe that it is C. crossing over :) I hope that is correct, it seems like the only plausible answer.
<span>The mirror is used to focus light through the opening in the in the stage of the microscope.</span>
Answer:
H+
Explanation:
Hemoglobin is the major protein of red blood cells. It has many exposed amino groups and carboxylic groups at its surface. These NH3 and COOH groups serve as weak acids and bases respectively and allow hemoglobin to serve as a buffer to maintain the pH of the RBC cytoplasm.
As the exposed amino groups of hemoglobin protein bind to the H+ ions, the free H+ concentration of the cytoplasm of RBC is reduced leading to a buffer action to maintain the pH.
