Examlex
A scientist wants to conduct research to determine if change in a certain variable causes predicable change in another variable. Which method should the scientist use?
Skin pH
The pH level of the skin’s surface, which is slightly acidic, typically ranging from 4.7 to 5.75, important for the skin's barrier function and microbial flora balance.
Sebum-Production
The process by which sebaceous glands in the skin produce and secrete an oily, waxy substance called sebum to lubricate and waterproof the skin and hair.
Epidermis
The epidermis is the outermost layer of the skin, serving as a protective barrier against environmental damage and pathogens.
Dermis
The dermis is the thick layer of living tissue below the epidermis that forms the true skin, containing sweat glands, hair follicles, and blood vessels.
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