Someone plz help me :(

A. Cell
B. Organ
C. Organ system
D. Organism

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.

When rutherford performed his metal foil experiment, he was surprised that most of the alpha particles

La glucosa es el nutriente mas utilizado por las celulas en la respiracion celular en esta ocurre 4 fenomenos cuales son