Which of the following statements is a correct distinction between autotrophs and heterotrophs?A)Only heterotrophs need to acquire chemical compounds from the environmentB)Cellular respiration is unique to heterotrophsC)Only heterotrophs have mitochondriaD)Autotrophs, but not heterotrophs, can nourish themselves beginning with nutrients that are entirely inorganic

An autotroph is an organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide. On the other hand, a heterotroph is an organism that cannot manufacture its own food by carbon fixation and therefore derives its intake of nutrition from other sources of organic carbon, mainly plant or animal matter. In the food chain, heterotrophs are secondary and tertiary consumers.