Carbon contributes an electron, and Hydrogen contributes an electron. The sharing of a single electron pair is termed a single bond. When two pairs of electrons are shared, a double bond results, as in carbon dioxide.
Elements of nervous system involved in motor coordinationEdit. The red nucleus is mainly involved in motor coordination of the muscles of the shoulder and upper arm, but it has some control over the lower arm and hand as well.
The cerebellum is the part of the brain that coordinates complex muscular movements. This part of the brain also communicates with the rest of the central nervous system a â¦ nd helps maintain posture. Which part of the brain regulates and coordinates all complex motor activities? The cerebellum is the part of the brain that controls and coordinates complex motor activities using signals from other parts of the brain and the spinal cord. It is locat â¦ ed in the back of the head at the base of the brain.