Energy Flow in an Ecosystem
Energy Flow in an Ecosystem: Overview
This Topic covers sub-topics such as Food Chains, Photosynthetically Active Radiation, Food Web, Biomass, Detritus Food Chain, Energy Flow, Grazing Food Chain, Primary Consumers, Tertiary Consumers, Secondary Consumers and, Standing Crop
Important Questions on Energy Flow in an Ecosystem
Which out of detritus food chain and grazing food begins with plants:


10% law of energy transfer was given by:

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?

Mr. X is eating curd/yoghurt. For this food intake in a food chain Mr. X should be considered as occupying


Energy flow in an ecosystem is always:

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

It is much easier for a small animal to run uphill than for a large animal, becallse

The importance of ecosystem maintenance lies in

Of the total incident solar radiation of percentage photosynthetically Active Radiation captured by the plants

In a food chain, the herbivores are represented by _____.

Study the following statements:
I) Camels are partial regulators or partial conformers.
II) In the limnetic zone of a lake, decomposers are almost absent.
III) Ten per cent law for the transfer of energy from one trophic level to the next was proposed by Elton.
IV) The natural reservoir of phosphorus is the sea.
V) In case of a parasitic food chain, the pyramid of numbers is inverted.
Among the above, the incorrect statements are

Match the following
List - I | List - II | ||
A |
Metabolic rate |
I | Jordan's rule |
B | Body size | II | Allen's rule |
C | Size of body parts | III | 10 percent law |
D | Energy flow | IV | Van't Hoff's rule |
V | Bergmann's rule |
The correct answer is

Source of energy in an ecosystem _____.

Energy enters in food chain by _____.

Regarding ecological food chain, man is a ________.

Study the following statements
(I) Camels are partial regulators or partial conformers decomposers are almost absent
(II) In limnetic zone of a lake, decomposers are almost absent
(III) Ten percent law for the transfer of energy from one trophic level to the next was proposed by Elton
(IV) The natural reservoir of phosphorus is sea
(V) In case of parasitic food chain, the pyramid of number is inverted
Among the above, the incorrect statements are

