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Unformatted text preview: 3,) What is the difference between thick and thin skin? Where is thick skin located? (4 points) Thick skin contains an extra layer called the stratum lucidum. Thin skin contains only four layers (stratum basale, stratum spinosum, stratum granulosum, and stratum corneum) Thick skin is found on plams, fingertips and soles of the feet. 1 Sawa Biology 13 4.) What cell causes skin cells to become cancerous? (2 points) UV light damages DNA. This causes mutations in some cells that allow the cell to grow uncontrollably. 5.) If a person has first degree burns on the posterior surface of his trunk and both arms, what percentage of his body is burnt? Is this considered a critical burn? (2 points) He is burned over 27% of his body. No, this is not critical because they are only 1 st degree burns. (It would be critical if they were 2 nd degree burns) 2...
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