They must contract and relax to move the bones for movement
"Bad" bacteria because there are also good bacteria that we need in order to live not just healthy, because every person gets sick and we need it for our body. Too much good thing is a bad thing.
Your example shows that you add a 0 to the end of how many heartbeats you get throughout 6 seconds which was 7 so that would give you 70, however in Sarah's example it doesn't tell us how many times her heartbeats in 6 seconds so I can't give you the answer, but if that's how the question is supposed to be then the answer would be 60 for all.
I hoped that helped! Let me know if you have any questions!
Have a great day/night! :)
click the file in the paper clip below for full answer
