<span>Causes Of Melanoma. Ultraviolet rays Most skin cancers are caused by too much exposure to the sun's ultraviolet (UV) rays. The two types of UV rays that cause melanoma are UV-A and UV-B rays.</span>
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A. Urethra
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The part highlighted below is also known as the Urethra, or the tube in which the urine or semen travels in the male reproductive system! :)
Answer: Stomata densities change in response to changing atmospheric levels of carbon dioxide. Stomata may also vary in response to the amount of annual rainfall in different localities.
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Answer:
DNA is converted into RNA
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