Answer:
Dunno some ppl just become huge out of nowherd
<span>the activity that requires the action of a first class lever in the body is: D. nodding
First class lever refer to a lever on which the resistance exist in one one side of the fulcrum and an effort is made on the other side.
Another example of a first class lever beside nodding are: Scissors, a crowbar, or a seesaw</span>
Integumentary, muscular<span>, </span>skeletal<span>, </span>nervous<span>, </span>circulatory<span>, </span>lymphatic, respiratory<span>, </span>endocrine, urinary, reproductive and digestive<span> </span>
