A labor-hour contract is a variation of the time-and-materials contract, differing only in that materials are not supplied by the contractor. See 12.207(b), 16.601(c), and 16.601(d) for application and limitations, for time-and-materials contracts that also apply to labor-hour contracts.
Appraising the brain's energy budget. In the average adult human, the brain represents about 2% of the body weight. Remarkably, despite its relatively small size, the brain accounts for about 20% of the oxygen and, hence, calories consumed by the body (1). This high rate of metabolism is remarkably constant despite widely varying mental and motoric activity (2).
The brain is the fattiest organ in the human body and is composed of roughly 60 percent fat. It is considered the center of the vertebral nervous system and is located in the head of all vertebrates. The brain is located near the primary sensory organs for vision, hearing, balance, smell and taste.