Two species of drosophila have been competing in the lab for a long time. a researcher notes that over the course of time, the competition coefficients of these species have become smaller. what is the most likely explanation of this change?

If your blood becomes too concentrated with iona, what will happen to the red blood cells

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.

If a grape were placed in a hypertonic solution what would happen and why?