Ragweed antigens bind ragweed and then bind mast cells which release histamine
<span>Allergies develop because of a Th2 response against the allergen. </span>
B PLANT<span> maximize its </span>photosynthesis
Answer:
A.The two proteins have different functions.
Explanation:
Answer:
Because of using fossil fuels nowadays it is used to air pollute the earth causing global warming.
Explanation: