is the portion of the brain ensures that skeletal muscle contraction follows the correct pattern leading to smooth

Cerebellum

Explanation:

The cerebellum is the portion of the brain that is responsible for smooth, coordinated voluntary movements. The skeletal muscle is voluntary because one can voluntarily choose to control this particular type of muscle as compared with cardiac muscle. It can be divided into three lobes which are the anterior, posterior, and flocculonodular lobes.

thinking it would be physical characteristics

hi my name is ashlynn and im 15

these macromolecules could either be amino acids, proteins or nucleic acids. they are responsible for the chemical changes and reactions that affects largely the cell and its composition. take for instance the cytoplasm of the cell where these organelles are settled. these simple organelles are composed of macromolecules which ignites and catalyses different functions that enables cells, in macro-perspective in motion and metabolism. in intestines for example, metabolism happens and breaking down parts of a food to simpler compounds that are used and these nutrients delivered throughout the body and again broken down by into smaller components.