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.
3) Tyson Gay: If it wasnât for Bolt, Gay would be the worldâs fastest human. Gayâs 9.69 is second only to Bolt and is a new American record and his 19.58 200-meters is third fastest ever. He recently became the first sprinter ever to run under 10 seconds in the 100, 20 seconds in the 200 and 45 seconds in the 400.