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.
Weather on Grenada in December. Wrap up the year by visiting one of the most beautiful islands in the Caribbean. A December on Grenada is bound to please all sorts of travelers. Regardless of whether you're drawn to the warm daily temperatures (between 77 and 83 degrees Fahrenheit) or the clear, sunny skies, a short trip to Grenada is sure to cure whatever ails you.