What comes to mind you hear the phrase "population growth

answer; i believe the correct answer is (data); /// good luck

answer; the tunica intima also called tunica interna, consists of elastic fibers,connective tissue and smooth muscle cells;

imagine a line passing through the center of earth that goes through both the north pole and the south pole. this imaginary line is called an axis. earth spins around its axis, just as a top spins around its spindle. this spinning movement is called earth's rotation. at the same time that the earth spins on its axis, it also orbits, or revolves around the sun. this movement is called revolution.