Biology Lab Safety Rules. Biology lab safety rules are guidelines designed to help keep you safe when experimenting. Some equipment and chemicals in a biology laboratory can cause serious harm. It is always wise to follow all lab safety rules. Don't forget, the most helpful safety rule is to use plain old common sense.
In 1937 statehood for Hawaii was proposed and refused by the U.S. Congressâthe territory's mixed population and distance from the U.S. mainland were among the obstacles. On Dec. 7, 1941, Japanese aircraft made a surprise attack on Pearl Harbor, plunging the United States into World War II.
The Vietnam War was the longest war ever fought by the United States. It lasted more than 15 years, from 1959 to 1975. It was also the first war that the United States lost. WHY THE WAR WAS FOUGHT The United States entered the war to stop the spread of Communism in Southeast Asia.t lasted more than 15 years, from 1959 to 1975. It was also the first war that the United States lost. WHY THE WAR WAS FOUGHT The United States entered the war to stop the spread of Communism in Southeast Asia.