CPR is short for cardiopulmonary resuscitation. It’s a life saving medical procedure which is given to someone who is in cardiac arrest. It helps to pump blood around the person's body when their heart can’t. To carry out CPR a person presses up and down on the casualty’s chest (chest compressions<span>) and gives them a series of rescue breaths to help save their life when they are in cardiac arrest. At 6 min, CPR was started with an automated chest compressor at a rate<span> of 200-240/min.
more information, https://www.ncbi.nlm.nih.gov/pubmed/19520479
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Receptors on the plasma membrane either recognize a particle as acceptable or foreign.
The answer is D
hope this helps
C. i belive is the correct answee
