The joints in the fingers are one of the examples of condyloid joints. The condyloid joint is formed when a bone with an elliptical end is connected to another bone with an elliptical cup. It allows for rotation in two planes. It is similar to ball and socket, but doesn't allow for full 360 degree rotation.
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Asbestos, carbon monoxide, welding fumes,
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Not sure on the others
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she is prejudging just because someone is homeless does not make him bad. she should have given him a chance instead of prejudging
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Sewage Treatment Programs are government programs which encourage hygiene practices
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The correct answer is C. hormones
Explanation:
Sebaceous gland called oil glands are present in the skin which at the time of puberty cause higher sebum production which cause acne. So at the time of puberty hormonal change occurs and androgen level like testosterone level becomes high in the body.
This high level of androgen cause rise in the production of sebum from sebaceous glands and cause inflammation in that region and allow the colonization of bacteria like <em>Propionibacterium acnes</em> which results in the formation of acne. So hormonal change cause acne therefore the right answer is C.
