AP BIOLOGY

ECOLOGY

ENERGY FLOW AND PRIMARY PRODUCTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How much energy is passed from one trophic level to the next?
A
1%
B
10%
C
50%
D
100%
Explanation: 

Detailed explanation-1: -The correct option is A. 10%. Lindemann’s 10% Law: This law states the organisms in a particular trophic level have 10% of the energy available to them from the previous trophic level.

Detailed explanation-2: -On average, only about 10% of the energy stored as biomass in one trophic level-e.g., primary producers-gets stored as biomass in the next trophic level-e.g., primary consumers.

Detailed explanation-3: -Whenever energy is transformed, there is a loss of energy through the release of heat. Similarly, energy is lost as heat when it is transferred between trophic levels like in a food chain/food web. This makes the flow of energy in an ecosystem unidirectional.

There is 1 question to complete.