Question

All the living organisms ultimately depend on ______ as the ultimate source of energy.

Answer 1

All the living organisms ultimately depend on sunlight as the ultimate source of energy.

Explanation:

The sun supplies radiant energy, which green plants (producers) capture through photosynthesis and convert into chemical energy. This energy is then transferred through various trophic levels in the ecosystem. Without the sun’s energy, life processes and food chains cannot be sustained.