Question

Give reasons for the following:
a) We cannot move our bones without muscles.
b) We should always sit and stand straight and walk upright.

Answer 1

Answer:

because they are our support

if we don't do this our hight will be short

Answer 2

Answer:

a) Joints are where two bones meet. They make the skeleton flexible — without them, movement would be impossible. Joints allow our bodies to move in many ways.

b) Increased energy levels. When your bones and joints are in correct alignment, it allows the muscles to be used as they're intended, so you'll have less fatigue and more energy, explains Griffith. In other words, “the muscles don't have to work so hard to do what they're supposed to do.”