The integumentary system is the skin. Skin protects the inner organs from Bactria. Essentially the skin is a wall protecting against the outside world. It doesn't really release anything but is just there for protection.
Hope this helped!
The answer is the first one
Moves astronauts around
American prairie, bison and badgers don't live in any of the other options naturally.
C. hope it helps. if so give a thanks
