Robert Hooke used a microscope to see that cork looked like it was made of little boxes. Anton van Leeuwenhoek saw tiny cells swimming in pond water. Which part of cell theory do these observations best support?

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.