I believe that this would be deforestation because the trees' roots keep the soil in place whereas if they were gone the soil would be loose.
This is how vaccines are used. You introduce the antibodies in a vaccine so the person builds up an immunity and never develops the disease
Your brain becomes more sensitive
going to the sun without protection repeated times causes freckles. Belive me my face is full of them.
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Tendons? hope this helps :)
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