Buna is a census-designated place in Jasper County, Texas, United States. The population was 2,142 at the 2010 census.
Gas Exchange. Gas exchange is the process by which oxygen and carbon dioxide (the respiratory gases) move in opposite directions across an organism's respiratory membranes, between the air or water of the external environment and the body fluids of the internal environment.
DEFINITION of 'Exchange Fund'. A stock fund that allows an investor to exchange his or her large holding of a single stock for units in a portfolio. Exchange funds provides investors with a easy way to diversify their holdings, while deferring any taxes from capital gains.Also known as a swap fund. stock fund that allows an investor to exchange his or her large holding of a single stock for units in a portfolio.