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.
Fine motor skills often involve the hands and eyes, but not necessarily. For example, visually impaired people are able to develop fine motor skills without the use of their eyes and soccer players often develop fine motor control in their feet through precise ball handling. Movement precision plays an integral role in fine motor skills (Payne & Isaacs, 1987).