In an ecosystem, energy gotten from the sun by plants flows through the ecosystem from one trophic level to another, as the energy in is transformed from one form to another via nutrition.
On the other hand, chemical elements in the form of nutrients are recycled and made available to primary producers when decomposers in the ecosystem to break down organic matter. During decomposition, energy is released. Several nutrient recycling process have feedback mechanisms that ensures chemical elements are recycled back into the ecosystem as they are being used up by organisms.
The chemical formula would be CTGA or any of the combinations of the four nitrogenous bases The nucleotide is made up of four bases which makes it a tetranucleotide and the arrangement of each bases create a linear geometry.
