The following organelles are part of the endomembrane system: * The cell membrane is a phospholipid bilayer membrane that separates the cell from its environment and regulates the transport of molecules and signals into and out of the cell. * The nuclear envelope is the membrane around the nucleus of the cell.
Take our quiz and find out. (CNN) -- This year will mark 51 years since President John F. Kennedy was assassinated in Dallas on November 22, 1963. Whether you were alive at the time or not, you probably know that Lee Harvey Oswald killed the President, only to be fatally gunned down by Jack Ruby two days later.
Kennedy becomes fourth president to be assassinated. On this day in 1963, the nation is shocked by the assassination of its president, John F. Kennedy. Kennedy was riding in an open car in Dallas, Texas, when a gunman named Lee Harvey Oswald fired three shots at him from an upper-level window of a nearby building.Kennedy was...n this day, President John F. Kennedy is assassinated in Dallas. Kennedy took office on January 20, 1961. From the start of his term, he was faced with a deteriorating situation in Southeast Asia, in which both Laos and South Vietnam were threatened by communist insurgencies.