What are the defense mechanisms of the human body

Cpr, or cardiopulmonary resuscitation, is a first-aid technique to save lives. it involves compressions of the patient's chest cavity. which description is the best description of the functions of chest compressions in cpr? chest compressions are done to pump the heart. chest compressions are done to strengthen the rib bones. chest compressions increase carbon dioxide inhalation. chest compressions allow the patient's muscles to wake up.

Which worm has eyespots that are used to detect light? a fluke b marine worm c planarian d tapeworm

Development has provided electrically for less money but what may be considered a cause of nuclear power