Question

energy in most ecosystems must flow through autotrophs because
a only autotrophs can convert solar energy into chemical energy
b. autotrophs are simpler organisms than heterotrophs
c. heterotrophs only generate a small fraction of their energy from photosynthesis
d. all of the above
please select the best answer from the choices provided

Explanation:

• Autotrophs, like plants, perform photosynthesis to convert solar energy into chemical energy (glucose). This is the base of the energy flow in most ecosystems.
• Heterotrophs (e.g., animals) cannot perform photosynthesis to a significant degree (if at all) to get energy. They rely on consuming autotrophs or other heterotrophs.
• The complexity of autotrophs vs heterotrophs (option b) is not relevant to energy flow through autotrophs.

Answer:

A. only autotrophs can convert solar energy into chemical energy