Layers of growth are removed and examined microscopically:
a. fungal test
b. scratch test
c. mohs surgery
d. cryosurgery
e. punch biopsy

c. Mohs surgery

Explanation:

Mohs surgery is a method to treat various types of skin cancer. Layers of tissue are removed in the process. Each layer is examined for cancerous cells. After evaluation it is decided whether the next layer should be removed or not. It has been used successfully to treat basal carcinoma which is the most common type of skin cancer. It is also used to treat other skin cancers like squamous cell carcinoma, sebaceous carcinoma, merkel cell carcinoma etc. The cancerous tissue is removed with high precision, not harming the normal tissue.

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math

the "power" of a lens is its resolution power, or its ability to distinguish between to closely located points. with the low power lens, it is likely you will see the rough form of the hay and maybe some movement of dots around the hay. however, when observed with the high power lens, the detailed features of the hay become visible and the microbes being grown are more clearly visible.

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