How does a motor neuron work when a mosquito is seen on the arm

Which are forms of nitrogen that are usable by humans

There are six elements that make up most of the human body. which of the following is not one of these six elements?

Ronald wants to see if a new shower cleaner works better in removing soap than his old cleaner. he uses the new cleaner on one half of the shower tiles and his old cleaner on the other half. identify the independent and dependent variables in this experiment. enter your answer in the space provided.