Question

question 2 (mandatory) (1 point) question for case a part 1: from lecture, which of the following will not produce differences in skin color? jaundice carotene addisons disease seborrheic dermatitis question 3 (mandatory) (1 point) question for case a part 1: why does our skin tan under the sun? uv radiation from the sun causes production of melanin that will act like sunshade for skin cells nuclei, limiting possiblity of skin cancer. uv radiation from the sun causes sun burn, which will protect us from skin cancer. uv radiation from the sun leads to more melain production that will cause skin cancer. uv radiation from the sun results in too much vitamin d production that will increase risk for skin cancer.

Explanation:

For Question 2, jaundice can cause a yellow - tinge to the skin, carotene can give a yellowish color, Addison's disease can darken the skin. Seborrheic dermatitis is mainly an inflammatory skin condition and does not produce differences in skin color related to normal skin - color variation. For Question 3, UV radiation from the sun causes skin cells to produce melanin which acts as a natural sunshade for the nuclei of skin cells, reducing the risk of skin cancer by absorbing UV radiation.

Answer:

Question 2: D. seborrheic dermatitis
Question 3: A. UV radiation from the sun causes production of melanin that will act like sunshade for skin cell's nuclei, limiting possiblity of skin cancer.