Answer:
There's a lot of methods that could be used.
Explanation:
Some of the best methods to use for cardboard boxes is to use them a packing box or even a school project. It more than likely costs less money so you can save up. Next time if you have a project or even if your moving, Possibly go to the closest store there is and see if they have any boxes.
Maybe it could be that their brains aren't fully developed and they are going through a lot of different hormones which makes things more intense emotionally.
By contracting, muscles pull on bones and allow the body to move.
Answer:
it would make the systems unbalanced, ruining the body. There are 10 systems
Circulatory
Respiratory
Nervous
Muscular
Skeletal
Digestive
Endocrine (hormones)
Lymphatic, or immune system
Reproductive
Integumentary (skin, hair)
if one becomes unbalanced or doesn't work the others cannot work, so i'm assuming a "self destruct"
hope this helps .-.
Explanation:
