Answer:
The IgE antibodies bind to mast cells. The allergen cross-links them. This triggers the mast cells to release powerful chemicals like histamines. Histamines cause the allergic symptoms like itching and runny nose. If you are allergic to pollen, your body will produce a large amount of allergen-specific IgE antibodies when you come in contact with pollen. The IgE antibodies bind to mast cells. The allergen cross-links them. This triggers the mast cells to release powerful chemicals like histamines.
They can constrict or dilate because their walls are muscular.
Answer:
family doctor, dentist, centers for disease control and prevention.
Explanation:
Answer:
No matter how much you want to help, you should not enter the house. If you do, you will be putting yourself at risk. There is no telling what might happen if you do. The threats must be serious.
You are putting yourself in danger if you choose to go inside. Though chest pain is a serious condition you should wait till help arrives.
Explanation:
The voices and verbal threats you heard are enough to make you believe that something is wrong. You can find out what's going on by calling the police and waiting for them to arrive.
This situation is not an isolated incident. In the past few years, there have been many cases of intruders being killed by homeowners.
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