Final answer:
The statement is true; botulinum toxin, also known as Botox, is used in controlled doses to relax facial muscles and reduce wrinkles, as well as to treat various medical conditions characterized by excessive muscle contractions.
Step-by-step explanation:
The statement that the deadly botulinum toxin can be used in the cosmetic treatment of skin wrinkles because it produces flaccid paralysis is true. Botulinum toxin (Botox) is a neurotoxic protein produced by the bacterium Clostridium botulinum that inhibits muscle contractions. When used in tiny, controlled doses, it can relax facial muscles, reducing the appearance of wrinkles. In addition to cosmetic uses, Botox is also employed to treat various medical conditions that involve excessive muscle contraction, such as cervical dystonia, hyperhidrosis, and some neurological disorders like cerebral palsy.