False, no matter where you work out there are potential dangers. For example if you are lifting a heavy weight, it could fall on your body and injure you. That's why you should always have a spotter. The gym and home area are the same unless you have someone with you.
Some developmental changes that adults experience can be weight gain, decreasing in height, and warring of tissues.
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The best way to describe a human sperm cell is a tad pole (Baby frog). Like the sperm cell the tad pole has a head, body and a tail. Though tad poles are finished products, the sperm cell needs to combine with the egg cell for it to be fertilized.
All of the above, they can have a negative affect on your body and a positive affect, mainly a negative affect so, A.
The answer is d because it helps everyone
