(A) Energy flow : Energy flow is the flow of energy through living. things with in an ecosystem. All living organisms can be organised into producers and consumers, and those producers and consumers can further be organized into a food chain. Energy flow in the ecosystem is one of the important factors that promote the survival of a great number of organism.
(B) Ori : Ori is the short form of origin of replication. It is the sequence of the genome at which the replication starts. This sequence is very particular. The passing of gentic material from generation to generation requires the duplication of DNA by semiconservative replication before the cell division.
