<span>Vitamin D.
Vitamin D is made from 7-dehydrocholesterol and needs UV light in order to be activated. Because the children are not exposed to sunlight, they are receiving insufficient UV light.</span>
Answer:
Mutations are random Mutations can be beneficial, neutral, or harmful for the organism, but mutations do not “try” to supply what the organism “needs.”
Explanation:
The answer to this question is exocytosis! This process allows particles to go through a small hole in the cell wall to enter other parts of your body! I hope this helped
Answer:
<h2><u><em>
Upon reinfection, the memory cells will immediately differentiate into plasma cells and CTLs without input from APCs or TH cells.</em></u></h2>
Explanation:
<h3>Hope i helped (<em>Tell me the results in the comments below pls</em>) Good Luck!</h3>
