EVERYDAY SCIENCE

Detailed explanation-1: -At each step up the food chain, only 10 percent of the energy is passed on to the next level, while approximately 90 percent of the energy is lost as heat. Teach your students how energy is transferred through an ecosystem with these resources.

Detailed explanation-2: -Not all the energy is passed from one level of the food chain to the next. About 90 per cent of energy may be lost as heat (released during respiration), through movement, or in materials that the consumer does not digest. The energy stored in undigested materials can be transferred to decomposers.

Detailed explanation-3: -Energy decreases as it moves up trophic levels because energy is lost as metabolic heat when the organisms from one trophic level are consumed by organisms from the next level. Trophic level transfer efficiency (TLTE) measures the amount of energy that is transferred between trophic levels.

Detailed explanation-4: -At each stage of a food chain, most of the chemical energy is converted to other forms such as heat, and does not remain within the ecosystem.

Detailed explanation-5: -The flow of energy in an ecosystem occurs in the following sequence: Sun——> Producer——> Herbivore——-> Carnivore——-> Decomposer.