Which of the following obtain energy by oxidizing inorganic substances to obtain energy that is used, in part, to fix carbon dioxide?
A) photoautotrophs
B) photoheterotrophs
C) chemoautotrophs
D) chemoheterotrophs that perform decomposition
E) parasitic chemoheterotrophs

Question

Quizplus · Accepted Answer

Chemoautotrophs obtain energy by oxidizing inorganic substances, such as hydrogen sulfide or ammonia, to obtain energy that is used to fix carbon dioxide. This process is also known as chemosynthesis. Photoautotrophs, on the other hand, obtain energy from sunlight through the process of photosynthesis. Photoheterotrophs obtain energy from sunlight but require organic compounds as a carbon source. Chemoheterotrophs obtain both energy and carbon from organic compounds, while decomposers break down dead organic matter into smaller molecules. Parasitic chemoheterotrophs obtain both energy and carbon from host organisms.

Which of the Following Obtain Energy by Oxidizing Inorganic Substances