Energy flow and its importance pictures 2page explanation......>
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Explanation:
Energy flow (in ecology) The flow of energy that occurs along a food chain. Energy enters the food chain at the level of the producers (usually plants) in the form of solar energy. The plants convert solar energy into chemical energy in the process of photosynthesis. Chemical energy is passed from one trophic level to the next through feeding. Since a large proportion of energy is lost at each trophic level, mostly in the form of heat energy due to respiration, a food chain does not normally consist of more than five trophic levels: the fifth trophic level does not contain enough energy to support further levels. Energy is also lost from the food chain in excretory products and the remains of dead organisms; this is converted into heat energy by the action of decomposers. See also productivity; pyramid of energy.
A unit composed of biotic components (i.e. producers, consumers and decomposers) and abiotic components (i.e. light, heat, rain and humidity, inorganic and organic substances) is called an ecosystem. The existence of living beings such as plants and animals depends on the flow of energy in them. Energy is needed for all the biotic activities. The most significant source of energy for all ecosystems is the sun. The energy received on the earth from the sun is utilized in different ways. Nearly 56-60% part of the incident energy is absorbed by the atmosphere, nearly 10% is utilised in the heating of water and land, and only 8% solar energy is incident on plants. Plants absorb most of the energy falling on them. Out of the absorbed energy, plants use only 0.02% in photosynthesis for producing their food. They are called the producers.
Answer:
In ecology, energy flow, also called the calorific flow, refers to the flow of energy through a food chain, and is the focus of study in ecological energetics. In an ecosystem, ecologists seek to quantify the relative importance of different component species and feeding relationships.
