Water, oxygen, and carbon dioxide can enter a cell through: a. simple diffusion b. osmosis c. facilitated diffusion d. active transport

answer; ///i believe its (b); ///the president will sign it or veto the check first good luck

during the 20th century, the role of the vice president has evolved into more of an executive branch position. now, the vice president is usually seen as an integral part of a president's administration and presides over the senate only on ceremonial occasions or when a tie-breaking vote may be needed.