Steel railroad tracks, barbed wire, farm machines, and taller buildings
Histamine is the active amine responsible for the signs and symptoms encountered in an allergic reaction.
The outward signs of an allergic reaction are caused by histamine. This includes signs including a runny nose, wheezing, and swollen tissues. Mast cells release histamine during an allergic reaction, which causes allergy symptoms. Antihistamines attempt to halt the allergic reaction by blocking histamine activity.
Histamine is a significant cause of allergy illness and is primarily stored in mast cells and basophils. Histamine levels in the blood or tissues have been found to be higher during anaphylaxis and in animal models of allergic reactions to the skin, lungs, and nose.
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I think the boy should be 9 years old because he know about the surface area and height
Answer:
Explanation:
one because probably didn't use pampas two because you need to step it out first three probably forgot the explanation let me know if this helps at all:)
