Structure and function of the dermis in general Structure; deep part of skin; connective tissue composed of two layers function; is responsible for the structural strength and flexibility of the skin; the epidermis exchanges gases nutrients and waste products with blood vessels in the dermis
My new answer: Usain Bolt acheived a top speed of 27.28 mph or 43.90 kph in travellng the 2 fastest consecutive 60-70 & 70-80, 10m splits ever of .82 seconds. We'll leave out 4x100m splits as I don't have them for Team Jamaica's WR from Beijing.
The World's Fastest Man Meets the World's Slowest Woman. In Beijing the focus has moved from the pool to the track, where Usain Bolt breezed through the 100-meter dash so easily he looked like an Olympian god running against mortals. No doubt he's now the world's fastest human. Another Olympian who held that title was Bullet Bob Hayes, who later played for the Dallas Cowboys. He was crowned world's fastest human at the 1964 Olympics in Tokyo where he won gold medals in the 100-meter dash and as anchor of the 400-meter relay. Like Bolt, Hayes blazed through the dash leaving his competitors in the dust.