Food Chain Definition For Class 3

A food chain is a pathway that represents the exchange of energy from one organism to another. It starts with the primary source, like the sun or hydrothermal vents, where producers make food, continues with consumers, or animals who eat the food, and ends with the top predator. Starting the food chain are producers, which are plants, fruits, and vegetables that make their own energy from the sun.

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It begins with producer organism, follows the chain and ends with decomposer organism.

Food chain definition for class 3. Food chain in a terrestrial ecosystem. The term food chain refers to the sequence of events in an ecosystem, where one organism eats another and then is eaten by another organism. The food chain starts with the producer or plants that convert solar energy into the usable form of energy (food) by the process of photosynthesis which is then eaten by consumers.

The study of food chain. The flow of energy through a single straight pathway from the lower trophic level to the higher trophic level is called food chain. The interconnected, numerous food chains through which the energy flow in the ecosystem is called food web.

The foremost source of energy is the sun and plants or producers use sunlight to make their food through the process of photosynthesis. Grazing food chain is a type of food chain in which energy at the lowest trophic level is acquired via photosynthesis. A food web is made up of several food chains and a food pyramid includes energy flow up the food chain.

This occurs when one organism consumes another organism. A sequence of organisms which feed on one another and transfer energy from a food chain. In this example of a food chain, caterpillars and insects eat the plant leaves.

The definition of a food. Energy is not created or destroyed. The grazing food chain begins with producers like green plants, who create their own food through the process of photosynthesis and later move from herbivores to carnivores.

Food chains start with organisms that make their own food, called producers. The food chain is a linear sequence of organisms where nutrients and energy is transferred from one organism to the other. Plants are the most common producers.