The protein separates from the ribosome in which step of translation

What are two reasons for why a species might disappear from the fossil record?

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 of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic