What are sets and reps in exercising? i don't understand this so explain it to me !

Ok so let's say someone tells you to do 10 sets of push-ups and 10 repsso you do 10 push-ups and repeat that set of push-ups 10 more times so you will end up doing 100 push-ups. hope this helps :)

Reps is short-hand for "repetitions" so it is how many times you repeat the same exercise in a set.

number of sets in turn is how many time you repeat the whole "set"  So like the example mentioned in the other ans, to do 10 sets of 10 reps for push-ups mean u will be doing 10x10=100 pushups.
 

Bmust be the answer, as technically all organs move, so a is incorrect. all organs are made of different types of cells, so that isn’t a problem, so c is also incorrect. human hearts are very similar to many other animals’ hearts, so d is also incorrect, yet the heart is made of muscle, which is hard to grow in the lab so it would be correct to say b

A.) just took it and made 100%