Guinea pigs were domesticated in:
South America
Central America
North America
Africa

Which element provides strength to the exoskeleton of clams and oysters

The organelle pictured is found in cells of and is theorized to have once been an independent 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.