Which supports the hypothesis that life has changed over time? a. around the world organisms are different from each other. b. the finches adapted to their habitat over many generations. c. there are atmospheric changes that have occurred over time. d. eukaryotic cells have a nucleus and membrane-bound organelles.

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.