Answer:
Pubic Lice and Scabies are different than previously mentioned STDs in that they are caused by an infestation of small bugs rather than by bacteria. Pubic lice are six-legged creatures known in the scientific world as Phthirus Pubis and more commonly as "crabs".
Explanation:
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Afferent or sensory neurons collect stimuli received by receptors throughout the body, including the skin, eyes, ears, nose, and tongue as well as pain and other receptors in the internal organs. Sensory information is transmitted, which includes the brain and spinal cord.
By contracting, muscles pull on bones and allow the body to move.