The "light-independent" or dark reactions happen in the stroma of the chloroplasts. This is also known as the Calvin Cycle. Since these processes can only happen in the chloroplast (a chlorophyll filled plastid in green plants), photosynthesis can only happen in green plants!
6CO2 + 6H2O + sunlight (light energy) → C6H12O6 + 6O2
The first are the grass,mouse,rabbit, and goat
The first organisms in the food chain are the producers. These are the plants. Their role is to capture energy from the sun and turn it into chemical energy that is then used by every other organism in the community.
Without energy, nothing would exists. we wouldn’t even exist.