4. Your typical healthy heart beats about
times during an average lifetime. (1 point)
30; 6 thousand
40; 1 billion
70; 2.5 billion
20; 1 billion
1 answer
70; 2.5 billion
times during an average lifetime. (1 point)
30; 6 thousand
40; 1 billion
70; 2.5 billion
20; 1 billion
1 answer