What is the main difference between free weights and a universal machine? a. weight machines build bigger muscles. b. free weights offer more versatility. c. weight machines can only be used in the gym. d. there is no difference.

"Free weights offer more versatility" is the one among the following choices given in the question that is the main difference between free weights and a universal machine. The correct option among all the options that are given in the question is the second option or option "B". I hope it helps you.

Hello! i believe that it is okay, but you should limit on how much you go in a jacuzzi, hot tub, sauna etc. the rise in temperature may effect the development of you unborn baby and could cause some birth defects most likely in the first 3 months or 12 weeks of pregnancy. the recommended amount of time to be in a jacuzzi while pregnant would be 10  minutes or less.i hope this !