@ RK, actually biotic potential is related to the existence and growth of plants, animals and microorganisms, which need the soil as a living space to deliver food and energy. On the other words, biotic potential increases the population of a species while environmental resistance decreases its growth. The energy flow takes place via the food chain and food web. During the process of energy flow in the ecosystem, plants being the producers absorb sunlight with the help of the chloroplasts and a part of it is transformed into chemical energy in the process of photosynthesis.

Dr J C Tarafdar thank you for your contribution to the discussion

The biotic potentials are related to the existence and growth of plants, animals and microorganisms, which need the soil as a living space to deliver food and energy. The biotic potential is one of the two factors affecting carrying capacity; the other is environmental resistance. While environmental resistance limits the population, biotic potential drives population increase. This 'biotic potential' is a very basic and fundamental characteristic of any species. Biotic potential is the ability of a population of living species to increase under ideal environmental conditions sufficient food supply, no predators, and a lack of disease. An organism's rate of reproduction and the size of each litter are the primary determining factors for biotic potential. A biotic community and its abiotic environment together form the basic functional unit of ecology or ecological system or ecosystem. Biotic potential is defined as the maximum number of individuals a species can produce. As with other organisms, this is and always has been a survival strategy against food deprivation, predation, and parasitism. Energy usually enters ecosystems as sunlight and is captured in chemical form by photosynthesizers like plants and algae. The energy is then passed through the ecosystem, changing forms as organisms metabolize, produce waste, eat one another, and eventually, die and decompose.Energy flows through an ecosystem in a one-way stream, from primary producers to various consumers. A food chain is a series of steps in which organisms transfer energy by eating and being eaten. Food chains can vary in length.