I think the answer is 3 and 4
Answer:
B
Explanation:
Stratosphere,absorbs rays of damaging ultraviolet light from the sun
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Prostaglandin is released in response to to a bee sting or pollen.
<h3>What is an allergic response?</h3>
An allergic response is a series of reactions induced by the immune system of the body due to the presence of a foreign substance known as an allergen.
A bee sting or pollen can be recognized as allergen and results in the release of prostaglandins by mast cells.
In conclusion, prostaglandins are produced in response to allergens.
Learn more about prostaglandins at: brainly.com/question/8213520
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Answer:
Changing the pH will affect the charges on the amino acid molecules. Amino acids that attracted each other
