The color of your skin depends on the amount of something called melanin that is produced in your body. Small amount of melanin means you have light skin, and larger amounts cause darker skin. Skin is the largest organ of the human body. Its most important job is to protect your bones and other organs, and it also lets you feel heat and cold. It is very important that you protect your skin from the sun, especially when you are a child.
organ: n. a group of cells that work together in your body to do something specific, like the brain, heart, and lungs
Unit 7
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