Flow of Energy
Flow of Energy: Overview
This topic consists of various concepts like Consumers in an Ecosystem,Detritus Food Chain,Tertiary Consumers, etc.
Important Questions on Flow of Energy
The food chain in which microbes breakdown energy rich compounds synthesized by producers is called:

A scorpion stalks, kills, and then eats a spider. Based on its behaviour, which ecological terms describe the scorpion?

Which of the following is most likely to be true about the percentage of energy received by a horse and a crow from the producers in different food chains?
Horse | Crow | |
1. | always the same | always the same |
2. | always the same | can be different |
3. | can be different | always the same |
4. | can be different | can be different |

Given below is a food web representative of the Arctic region.
Increasing temperatures have been causing changes in the ocean ecosystem. These changes have caused the population of Arctic cod to decline rapidly.
Which of the following statement/s is/are most likely to be TRUE based on this information?
P) The population of arctic birds will increase.
Q) The ringed seal will slowly become extinct.
R) The harbour seal will be dependent on capelins alone.

A substrate is the surface on which an organism lives or survives on.
Which of the following acts as the substrate that provides energy in a detritus food chain?

Which of the following is not correctly matched ?

The amount of Photosynthetically active radiation captured by plants is

Will humans beings concluded as primary consumers?

In the given food chain in the diagram if there is merciless killing of bugs, what will be the effect on the ecosystem?

Food chain operating on decaying cow dung or organic remains is referred to as

PAR (Photosynthetically active radiation) from incident solar radiation is






If in an ecosystem, the grasses have energy, what is the amount of energy in the lion available?

Write the name of the organisms belong to the detritus food chain.


Give some examples of organisms in grazing food chain.
