Answer:
UVA radiation causes lesions or DNA damage to melanocytes, which are the skin cells that produce the skin pigment known as melanin. Melanin is a protective pigment in skin, blocking UV radiation from damaging DNA and potentially causing skin cancer
Explanation :yw
Nuclear pores. DNA is to large to go in the nuclear pores but MRNA can.
The collision theory<span> is based on the assumption that for a reaction to occur it is necessary for the reacting species atoms or molecules to come together or </span>collide<span> with one another.\</span>
I think it's so your lungs can expand to help you breathe properly ? You may have to wait for some more answers to come through
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