Heterotrophic organisms used the process of fermentation to nourish. what is fermentation?
a. it is a chemical process that requires oxygen.
b. it is a chemical process in which sugar molasses is ingested.
c. it is a chemical process which enables heterotrophs to obtain energy without oxygen.

Consider the following reaction at equilibrium: c(s)+h2o(g)⇌co(g)+h2(g) predict whether the reaction will shift left, shift right, or remain unchanged upon each of the following disturbances. a) c is added to the reaction mixture. b) h2ois condensed and removed from the reaction mixture c) co is added to the reaction mixture d) h2 is removed from the reaction mixture.