After reading the following options, the correct one is the third option, PET scans will use tracers to inject in a vein in someone's arm. Then, the organs as well as tissues will absorb the tracer. This information makes the third option correct because PET scans mostly work with your tissues to see if there are any diseases someone may have in their body.
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Peaculiar
Yes they are and we need it on our body
That is known as fertilization
Answer:
The correct answer is A. Cancers that affect epithelial tissues are called carcinomas.
Explanation:
Carcinoma is a malignancy that develops from epithelial cells. They are mainly a cancer that begins in a tissue that lines the inner or outer surfaces of the body, and that arises from cells originating in the endodermal, mesodermal or ectodermal germ layer during embryogenesis.
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