The blood consists of a suspension of special cells in a liquid called plasma. In an adult man, the blood is about 1/12th of the body weight and this corresponds to 5-6 litres. Blood consists of 55 % plasma, and 45 % by cells called formed elements. The blood performs a lot of important functions.
The weather and its seasons. Grenada boasts comfortable to hot weather year round. Expect temperatures that range from 32 C during the day in summer to as low as 20 C overnight in winter.
In the early morning hours of October 25, 1983, the United States invaded the small Caribbean nation of Grenada. The fiery leftist President Maurice Bishop had been assassinated days earlier. The initial invasion consisted of some 1,200 US troops. At the time of the invasion, a delegation of 500 Cubans were in the country. They included doctors, engineers, teachers and construction workers, who were there to help build an international civilian airport for Grenada.