Organophosphate insecticides such as malathion are widely used to control the mosquito population. Malathion is a cholinesterase inhibitor, and it attaches to the active site on cholinesterase. This results in continuous stimulation of the insects' muscles, leading to death and effectively eradicating the pest population. In the diagram above, acetylcholine and malathion are numbered, respectively, Select one: a. 3 and 7 b. 4 and 7 c. 7 and 3 d. 7 and 4

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Muscle Action

A change in the body or a bodily organ as a result of its functioning is referred to as an action. Muscle action can be defined as the specific movement of a bodily part generated by the contraction of a muscle. The muscle proteins actin and myosin are the important contractile proteins involved in muscle action. Muscle contraction, in addition to movement, serves several other important functions in the body, including posture, heat generation, and joint stability. Muscle contraction maintains posture, which includes standing and sitting.