4. Which choice best explains why a 1 kilogram sample of carbon and a 3 kilogram sample of carbon have similar properties?
A. They have the same mass
B. They have the same shape
C. They have the same volume
D. They have the same type of atoms

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 most abundant vertebrate on earth?

Suppose you are provided with an actively dividing culture of e. coli bacteria to which radioactive thymine has been added. what would happen if a cell replicates once in the presence of this radioactive base?