Colorado Cosmetology Written Practice Exam

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What is characteristic of a tumor?

A cluster of dead cells
A cracked skin layer
An abnormal cell mass that varies in size, color, and shape
A fibrous protein mass

The correct answer is: An abnormal cell mass that varies in size, color, and shape

A tumor is an abnormal mass of cells that can develop in any part of the body. It can be either benign (non-cancerous) or malignant (cancerous). Option A is incorrect because a tumor consists of living cells that are dividing and multiplying uncontrollably, not dead cells. Option B is incorrect because cracked skin is not a characteristic of a tumor. Option D is incorrect because not all tumors are made of fibrous proteins; they can be composed of different types of cells. Therefore, the most characteristic feature of a tumor is its abnormal cell growth and varying size, color, and shape.