Consider the following statements about the skin: 1. The epidermis is the outermost layer. 2. Melanin protects against UV radiation. 3. Sebaceous glands produce sweat. Which of the above is/are correct? MCQ with Answer and Explanation

Explanation:
Kwashiorkor results from severe protein deficiency with adequate calories, causing edema, pot belly, and skin lesions. Marasmus is overall calorie deficiency, beriberi thiamine.

Explanation:
Vernalization is the process by which many plants, particularly biennials and winter annuals (like winter wheat, cabbage, and carrots), require exposure to a prolonged period of low temperature (cold treatment) before they can initiate flowering. This prevents the plant from flowering in the autumn, ensuring it survives the winter and flowers in the spring or summer. The cold stimulus is perceived by the apical meristem or the germinating seed.

Explanation:
Rickets is characterized by weak, soft bones, bowed legs, and growth retardation due to impaired calcium deposition. In adults, equivalent is osteomalacia. Scurvy is vitamin C, pellagra niacin.