The Flow of Energy in an Ecosystem is Always?

Q. The flow of energy in an ecosystem is always? 

Answer:- The flow of energy in an ecosystem is always unidirectional. 

Energy is always flowing in an ecosystem. It flows from the sun through the food chain and then back to the earth. The energy is used to grow plants and trees, which are eaten by animals that are eaten by other animals, and so on. Plants use sunlight to make food for themselves and animals. Plants are the first link in the food chain. They use sunlight to produce their own food (sugars) from carbon dioxide and water. This is called photosynthesis. Animals eat plants or other animals, which have eaten plants or other animals, which have eaten plants or other animals, etc., forming a long chain of energy flow called a food web.

Energy flows from the sun to all living things in an ecosystem by passing through plant material like leaves and stems, which convert it into sugars that can be used for growth and energy production by both themselves and other organisms in the environment. Plants are the key to the natural process of photosynthesis that converts sunlight into food. Photosynthesis takes place in the leaves of plants and releases oxygen. 

Plants also use sugars from photosynthesis to produce food, grow and reproduce. Plants are generally characterized by the following characteristics.

1. Plants are photosynthetic.
2. Plants are primarily terrestrial and multicellular organisms that have descended from an organism called green algae. 
3. Plant growth is adapted and indeterminate to gather and diffuse resources.
4. Shoots have simple repeated cells or units that exhibit serial homology in them.
5. The presence of roots that hold soil in place, which is eaten and excreted as particles of organic matter.
6. Cell walls containing cellulose, hemicellulose, lignin, and pectin that provide structure and strength. 
7. A stem or trunk with branches containing leaves.

Now you know that the flow of energy in an ecosystem is always unidirectional.