Question

question 4 (mandatory) (1 point) case a part 2 for questions #4 and 5 mary urges bob to make an appointment with a physician for an examination of the scaly lesion. bob does so the following week. the physician performs a biopsy on the lesion. histologic examination of the biopsy confirms that mark has squamous cell carcinoma. squamous cell carcinoma is the most common type of oral cancer. its cause is associated with exposure to the sun, consumption of alcohol, and use of tobacco in all forms. cells in the stratum spinosum of the epidermis undergo anaplasia, transforming into cancer cells and dividing rapidly. incidence of metastasis is low if the lesion is removed at an early stage. question for case a part 2: which of the following types of skin cancer is least aggressive? merkel cell carcinoma basal cell carcinoma sebaceous carcinoma melanoma question 5 (mandatory) (1 point) question for case a part 2: why do fair - skinned individuals have higher risks for

Explanation:

Basal cell carcinoma is generally the least aggressive type of skin - cancer among the options. It grows slowly and has a low tendency to metastasize. Merkel cell carcinoma is highly aggressive with a high risk of recurrence and metastasis. Sebaceous carcinoma can be aggressive and may spread to nearby lymph nodes. Melanoma is also very aggressive and can spread quickly to other parts of the body. Fair - skinned individuals have less melanin, which is a natural pigment that provides some protection against the harmful UV rays of the sun. UV rays are a major cause of skin cancer, so with less protection, fair - skinned people are at higher risk.

Answer:

Question 4: B. basal cell carcinoma
Question 5: Fair - skinned individuals have less melanin which protects against UV rays, and UV rays are a major cause of skin cancer.