Answer:
<em>Involuntary </em><em>physiologic</em><em> </em><em>processes</em>
The right option is b. actinic
keratosis
An actinic keratosis describes a precancerous
skin growth that occurs on sun-damaged skin. It is commonly found on the face,
lips, ears, scalp and neck. The affected parts of the body appear rough, bumpy
and scaly. A small percentage of actinic keratosis lesions can lead to skin
cancer.
the nitrogen cycle involves decompisition. and the waste from the animals is then turned into nitrogen.