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A skin disease caused by a vegetable parasite is known as?

  1. Pityriasis

  2. Psoriasis

  3. Ringworm

  4. Dermatitis

The correct answer is: Ringworm

The term "ringworm" refers specifically to a skin infection caused by fungal parasites, which are often referred to as dermatophytes. Despite its name, it is not caused by a worm but rather by these organisms that thrive on keratin found in skin, hair, and nails. Ringworm can manifest in various forms depending on the area of the body afflicted, such as tinea corporis on the body, tinea capitis on the scalp, and tinea pedis on the feet. Pityriasis pertains to a flaking or shedding condition of the skin, often linked to non-parasitic factors. Psoriasis is an autoimmune condition characterized by rapid skin cell proliferation, leading to scaly patches, and is not caused by any parasite. Dermatitis is a general term for skin inflammation and can arise from various causes, including allergens and irritants, rather than a parasitic infection. Thus, the choice of "ringworm" clearly identifies a skin disease specifically arising from a vegetable (fungal) parasite, making it the correct answer in this context.