Which pathway is the foundation for the majority of ecosystems and food chains on Earth?
A) photosynthesis
B) anaerobic respiration
C) aerobic respiration
D) chemosynthesis
E) decomposition

Question

Quizplus · Accepted Answer

Photosynthesis is the process by which autotrophs (such as plants, algae, and some bacteria) use energy from the sun to convert carbon dioxide and water into organic molecules (primarily glucose) and oxygen. This process is the foundation of most ecosystems on Earth, as it provides the basis for the majority of food chains by producing organic compounds that are then used as a source of energy by heterotrophs (such as animals and fungi). Without photosynthesis, most life on Earth would not exist.

Which Pathway Is the Foundation for the Majority of Ecosystems