Langerhans cells exist on the surface of the skin. They help to protect you by keeping dangerous microbes from entering your body. Langerhans cells do this in two very different ways: by protecting your skin from infection and also by stimulating allergic reactions.
Explanation:
B. leads to muscle strain.
The two plants that have the shortest distance between them are Mercury and Venus which is roughly <span>31,248,757 miles separated from each other.</span>
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I believe this is right but double check to make sure :)