The correct answer is by using the antagonist.
The antagonist is a molecule that blocks a biological response by binding to the receptor. So, you add antagonists to the receptors you want to determine and see which antagonist blocked the response. By blocking the specific response you can get the answer what receptor it was.
Only known planet to have oceans of liquid water is Earth.
The correct answer is <span>C. You cannot view live specimens because the necessary preparation kills cells. </span>
The answer is pretty self-explanatory. Unlike it, regular microscopes can view living creatures such as bacteria or similar.
THE ANSWER IS BIGGER THAN A REALY SMAL FRIDGE BUT SMALLER THANY A REALY BIG FRIDGE
The cell membrane gateway system you are looking for is called <span>Sodium Potassium Pump.</span>