EVERYDAY SCIENCE

Detailed explanation-1: -A food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another. In a food chain, each organism occupies a different trophic level, defined by how many energy transfers separate it from the basic input of the chain.

Detailed explanation-2: -The sequence of transfer of matter and energy in the form of food from one organism to the other is called a food web.

Detailed explanation-3: -In the food chain, energy is transferred from one living organism through another in the form of food. There are primary producers, primary consumers, secondary consumers and decomposers-all part of the food chain. Follow this link for a good introduction to how food chains work.

Detailed explanation-4: -The flow of energy in an ecosystem occurs in the following sequence: Sun——> Producer——> Herbivore——-> Carnivore——-> Decomposer.

Detailed explanation-5: -A food chain outlines who eats whom. A food web is all of the food chains in an ecosystem. Each organism in an ecosystem occupies a specific trophic level or position in the food chain or web. Producers, who make their own food using photosynthesis or chemosynthesis, make up the bottom of the trophic pyramid.