The sun is the ultimate source of energy for almost all earth ecosystems.
The most important source off all is WATER!
The sun Added: This is definitely true. Sunlight affects all surface and shallow water ecosystems. All though the sun provides us with a primary source of energy for almost all of earth's ecosystems, with proof of greenery from photosynthesis; this is not the case in such areas like the land of the Sahara desert and the Southwest climates of the USA. The lack of abundant water is another factor.
The sun is the ultimate source of all energy in Earth's ecosystems.
The sun.
The sun
alternative energy
the sun
carbohydrates
Mitochondria is main source of energy for all eukayotic cells . Energy is obtained by oxidation of food .
glucose is the source of energy for all living things.
The Sun is the primary source of all energy in nearly all food chains. However, some deep-sea ecosystems utilize heat from underwater thermal vents as their primary energy sources since sunlight is virtually nonexistent.