What does the change of pattern of the birds suggest?

Melting glaciers is a serious threat to the environment what is the possible consequence of melting glaciers on polar bears?

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.

What is the starting point in replication called