The canal spanned 350 miles between the Great Lakes and the Hudson River and was an immediate success. Between its completion and its closure in 1882, it returned over $121 million in revenues on an original cost of $7 million. Its success led to the great Canal Age.
An Integrated Temperature Regulatory Center. The whole brain helps regulate body temperature, but the main thermoregulatory center is the hypothalamus (located midline in the brain behind the eyes), which possesses two specialized sections: a heat-losing center and a heat-promoting center.
Apart from excretion, the skin also plays an important role in regulating the temperature of the human body.When the body gets too hot, the eccrine glands secrete sweat onto the surface of the skin. When the sweat evaporates, it releases heat energy from the skin causing a cooling effect.