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.
Gross Motor Skills. The movement and coordination of large muscle groups involves gross motor skills. Gross motor skills frequently require the hands to coordinate with the eyes. These skills include hitting a baseball and swinging a golf club. However, gross motor skills aren't just used in sports.