Dose any body want to talk or not

Which of the following requires the action of a first class lever in the body

Diseases may arise when proteins fail to fold correctly in their last stages of processing and/or are directed towards the lysosome rather than towards the cell membrane. cystic fibrosis is an example of this type of disease. in cystic fibrosis, a functional ion channel is sent to the lysosome for destruction rather than being sent to the plasma membrane. given this observation, the cellular component that is most likely the cause of the disease is the

Which of these contraceptive methods would be most beneficial for a female who wishes to avoid side effects or surgery?