Myofibrils are composed of long proteins including actin, myosin, and titin, and other proteins that hold them together. These proteins are organized into sections called sarcomeres.
Answer:
spinal cord
Explanation:
The spinal cord is what makes up the central nervous system
Answer:
Immerse burned area in cool water.
But it doesn't mean you should apply very cold water/ ice cold water on the burn. Extreme cold applied to a burn can further damage the tissue.
I think it should be B because to improve your'e physical fitness you have to do regular excercise
