ECOLOGY
ENERGY FLOW AND PRIMARY PRODUCTION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
it is lost to the cooler parts of the ecosystem (abiotic factors)
|
|
|
lack of sun energy coming into the ecosystem
|
|
|
it is stolen by hot surrounding environments
|
|
|
it does not get lost from the ecosystem
|
Detailed explanation-1: -State the reason why heat created by living organisms is eventually lost from the ecosystem. Heat passes from hotter to cooler bodies, so heat produced in living organisms is all eventually lost to the abiotic environment.
Detailed explanation-2: -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-3: -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-4: -Living organisms cannot convert heat to other forms of energy. Heat is lost from ecosystems. Energy losses between trophic levels restrict the length of food chains and the biomass of higher trophic levels.