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science chapter 3


health consumer a person who buys and uses health products or services
ingredients the things that are in the product.
ultraviolet rays cause sunburn and tanning .
hair follicle special cells in the follicle as new cell form.
oil gland in each follicle makes oil that coats the hair and spreads.
plaque which coats your teeth
gingivitis a gum disease in which the gums become red and swollen.
orthodontia straightening of crooked teeth.
astigmatism the cornea or lens of the eye is curved unevenly
Created by: sumaya kalam