PL CANT GET WRONG PL HEL Process or mechanism by which evolution occurs.

A. Evolution

B. Natural Selection

C. Mutation

D. Adaptation

Which of these statements are true about scientific theories and hypothesis

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 could happen if two base pairs on a strand of dna or switched