Sleep is often believed to be an important aspect of daily functioning, a viewpoint most likely originating from the fact that the average person will spend almost a third of their life in a state of sleep. ... It is the combination of both the significant quantity of total sleep represented by these sleep states and the differences in their contribution towards total sleep time which have led researchers to believe that each play a differing roles in the functions of sleep. As previously suggested there are a number of theories as to why we sleep and its importance towards our daily function...

• Word Count: 3321
• Approx Pages: 13
• Has Bibliography
• Grade Level: Graduate

With simple structure, short cell cycle, the ability to grow in various water environments, and natural photosynthesis process, microalgae can provide viable biomass to produce biofuels. ... They contain higher lipid and protein content than other terrestrial plants. ... Microalgae are single-celled and smaller types with strong photosynthesis capacity. ... The short cell cycle and fast reproduction, simple structures, and high oil content provide additional advantages to utilize microalgae as feedstocks to produce large-scale bioenergy. ...

• Word Count: 3194
• Approx Pages: 13
• Has Bibliography
• Grade Level: Graduate