I think the answer is A. Hope this helps !!
Calcium is what you should look for to strength your bones, therefore leading to a better growth development.
The environment that the bacterial cell is in can affect plasma membrane stability. The cell must constantly adjust the chemistry of its plasma membrane in order to maintain homeostasis.
I Don't Know If That Helps...
When we are little we see the way our parents or elders act and that tells our brain that is the correct way to act. As we grow up the things they tell us we will become is what we think will happen and so we do that in fear that we will disappoint them.
2. improves the health of your muscles and I would think 1. considered exercise but the part with some of the time throws me off
