EVERYDAY SCIENCE

Detailed explanation-1: -The model that represents many intersecting food chains and pathways in which energy can flow is called a food web.

Detailed explanation-2: -A food chain is a simple diagram that shows one way energy flows through an ecosystem.

Detailed explanation-3: -The energy flow in ecosystem is linear i.e., it moves in a fixed direction. The solar energy is absorbed by plants and a part of it is converted into food. These plants (or primary producers) are then eaten by the primary consumers, which are consumed by secondary consumers and the secondary by tertiary consumers.

Detailed explanation-4: -A food chain represents a simple linear pathway through which energy and materials are transferred from one species to another in an ecosystem. In general, food chains show how energy and materials flow from producers to consumers.