Question: Information: - Piedraia hortae is a superficial fungus that exists in the soils of tropical and subtropical environments and affects both sexes of all ages. The fungus grows very slowly, forming dark hyphae, which contain chlamydoconidia cells and black colonies when grown on agar. "Piedraia hortae" is a dermatophyte and causes a superficial fungal infection known as black piedra, which causes the formation of black nodules on the hair shaft and leads to progressive weakening of the hair. The infection usually infects hairs on the scalp and beard, but other varieties tend to grow on pubic hairs. The infection is usually treated with cutting or shaving of the hair and followed by the application of anti-fungal and topical agents. The fungus is used for cosmetic purposes to darken hair in some societies as a symbol of attractiveness. - Piedra (also known as "Trichosporosis") is a hair disease caused by a fungus. - A fungus (plural: fungi or funguses) is any member of the group of eukaryotic organisms that includes unicellular microorganisms such as yeasts and molds, as well as multicellular fungi that produce familiar fruiting forms such as mushrooms and bracket fungi. These organisms are classified as a kingdom, Fungi, which is separate from the other eukaryotic life kingdoms of plants and animals. - Dermatophytes (derived from Greek "" (dermatos), from "", which means "skin" and -"phyte", from "phuton", meaning "plant" ) are a common label for a group of three types of fungus that commonly causes skin disease in animals and humans. These anamorphic (asexual or imperfect fungi) genera are: "Microsporum", "Epidermophyton" and "Trichophyton". There are about 40 species in these three genera. Species capable of reproducing sexually belong in the teleomorphic genus Arthroderma, of the Ascomycota (see Teleomorph, anamorph and holomorph for more information on this type of fungal life cycle). - Black piedra is a form of piedra caused by Piedraia hortae . Terbinafine has been used in the treatment . After reading the paragraphs above, we are interested in knowing the entity with which 'black piedra' exhibits the relationship of 'has cause'. Find the answer from the choices below. Choices: - infection - life
Answer:
infection