EVERYDAY SCIENCE

SCIENCE

ECOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In going from one trophic level to the next higher level,
A
the number of organisms increases.
B
the amount of usable energy increases.
C
the amount of usable energy decreases.
D
diversity of organisms increases.
Explanation: 

Detailed explanation-1: -The transfer of energy from one trophic level to next trophic level follows the 10 percent law known as Lindeman’s law of trophic efficiency which states that the efficiency of energy transferred from one trophic level to the next higher trophic level is about 10%. Rest of the energy is lost in respiration.

Detailed explanation-2: -Only about 10% of the energy is transferred from one trophic level to another. The rest is used for life processes of the organism and some is lost as heat. Q. According to Lindeman’s 10% law, only 10% of energy is transferred to next trophic level.

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: -The amount of energy at each trophic level decreases as it moves through an ecosystem. As little as 10 percent of the energy at any trophic level is transferred to the next level; the rest is lost largely through metabolic processes as heat.

Detailed explanation-5: -The bottom and largest level of the pyramid is the producers and contains the largest amount of energy. As you move up the pyramid, through the trophic levels to primary, secondary and tertiary consumers, the amount of energy decreases and the levels become smaller.

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