59. Which of the following statements is a correct distinction between autotrophs and heterotrophs?
(A) Only heterotrophs need to acquire chemical compounds from the environment.
(B) Cellular respiration is unique to heterotrophs.
(C) Only heterotrophs have mitochondria.
(D) Autotrophs, but not heterotrophs, can nourish themselves beginning with nutrients that are entirely inorganic.
(E) Only heterotrophs require oxygen.