A major effect of long-term weightlessness involves the loss of bone and muscle mass. Without the effects of gravity, skeletal muscle is no longer required to maintain posture and the muscle groups used in moving around in a weightless environment differ from those required in terrestrial locomotion.
Marina /ma-ri-na/ [3 sylls.] as a girls' name is pronounced mah-REE-nah. It is of Latin origin, and the meaning of Marina is from the sea. From marine. A saint's name. Shakespeare gave the name to Pericles' daughter in his play Pericles, Prince of Tyre.
History of Belize. The origin of the name Belize is relatively unclear, but one theory is that it derives from the Spanish pronunciation of the surname of the pirate who created the first settlement in Belize in 1638, Peter Wallace. Another possibility is that the name is from the Maya word belix, meaning muddy water, referring to the Belize River.