Carbon is ________. (Select all that apply)

Question

Quizplus · Accepted Answer

A) Carbon is indeed the backbone for all organic macromolecules, including proteins, nucleic acids, carbohydrates, and lipids, making it a fundamental element in organic chemistry and biology. B) Photosynthetic organisms, such as plants and algae, acquire carbon through carbon fixation, a process where CO2 from the air is converted into organic compounds. C) Chemoautotrophs, which are organisms that obtain energy by the oxidation of electron donors in their environments, also acquire carbon through carbon fixation, though they do not rely on sunlight for energy. D) Chemoheterotrophs, including most animals and fungi, obtain their carbon by consuming other organic molecules, making them dependent on the organic compounds produced by autotrophs.

Carbon Is ________. (Select All That Apply)