QUESTION: answer this: when did prokaryotic cells first appear on earth??

ANS: approximately 3.5 billion years ago

QUESTION: answer this: what year did the original wizard of oz movie come out??

ANS: 1939

QUESTION: answer this: an angle that measures greater than 0 degrees and less than 90 degrees??

ANS: acute

QUESTION: answer this: what are the two shockable rhythms in cardiac arrest??

ANS:
ventricular fibrillation