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.
Robert F. Kennedy saw conspiracy in JFKâs assassination. Robert Kennedy and Jacqueline Kennedy watched as President Kennedyâs coffin was placed in an ambulance at Andrews Air Force Base, Md., on Nov. 22, the day he was assassinated. Attorney General Robert F. Kennedy was sitting at his backyard patio table, clutching a tuna fish sandwich, when the call came through.