Vitamin : Important Facts

A vitamin is an organic molecule that is an essential micro-nutrient that an organism needs in small quantities for the proper functioning of its metabolism. There are 13 essential vitamins (A, B, C, D, E, and K, with 8 vitamins in the B complex). Fat soluble vitamins are D, K, A and E Water soluble […]

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Food Chain and Food Web

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. At the base of the food chain lie the primary producers. The primary […]

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