Food Chain Definition For Class 3

What is the Food Supply Chain.

Food chain definition for class 3. A food chain describes how organisms get energy from eating other organisms. Food chains are more or less familiar to everyone in a vague sort of way. Understanding Goals A food supply chain or food system refers to the processes that describe how food from a farm ends up on our tables.

This occurs when one organism consumes another organism. Food chain definition for class 3. The processes include production processing distribution consumption and disposal.

In a community which has producers consumers and decomposers the energy flows in a specific pathway. The food chain is a linear sequence of organisms where nutrients and energy is transferred from one organism to the other. Any animal that is on top of the food chain is called an Apex.

In scientific terms a food chain is a chronological pathway or an order that shows the flow of energy from one organism to the other. The food chain describes who eats whom in the wild. In other words it is the chronological order of who eats whom in a biological community.

A food chain shows a sequence of living things in which one organism eats the one below it. Every living thingfrom one-celled algae to giant blue whalesneeds food to surviveEach food chain is a possible pathway that energy and nutrients can follow through the ecosystem. If occupies an intermediate trophic position between primary and secondary consumers.

Every ecosystem or community of living things has one or more food chains. 4 It improves our knowledge about the movement of toxic substances in an ecosystem. The term food chain describes the order in which organisms or living things depend on each other for food.