Advertisements
Advertisements
Question
In the figure given alongside, the various trophic levels are shown in the form of a pyramid. At which trophic level the maximum energy is available?

Options
T4
T2
T1
T3
Advertisements
Solution
T1
Explanation:
At T1, producers, which make food, are present, and hence they are at the bottom of the trophic levels. As they get energy directly from the sun, they have the maximum energy. This energy keeps on reducing as it is passed on to the next trophic levels.
APPEARS IN
RELATED QUESTIONS
"Our food grains such as wheat and rice, the vegetables and fruits and even meat are found to contain varying amounts of pesticide residues." State the reason to explain how and why it happens?
What are trophic levels? Give an example of a food chain and state the different trophic levels in it.
What name has been given to those organisms which break down the complex organic compounds present in dead animals and plants?
Construct a food chain comprising the following :
Snakes, Hawk, Rats, Plants
Consider the food chain :
Grass → Deer → Lion
What will happen if all the lions are removed from the above food chain?
At which trophic level a person is feeding when he is eating roasted chicken.
If a grasshopper is eaten by a frog, then the energy transfer will be from ______.
A food chain occurring in the sea which provides food for many people can be written as :
phytoplankton → zooplankton → X → Y
What could be X?
What would happen to the number of rabbits and grass plants if the number of foxes decreased?
Match the terms given in column I with the terms given in column II and column III having the same meaning :
| Column I | Column II | Column III |
| (1) Secondary consumer | Herbivore | 1st trophic level |
| (2) Primary consume | Autotroph | 3rd trophic level |
| (3) Producer | Carnivore | 4th trophic level |
| (4) Tertiary consumer | Large carnivore | 2nd trophic level |
If a harmful chemical enters a food chain comprising cat, mice and plants, which one of these organisms is likely to have the maximum concentration of the harmful chemical in its body?
Will the levels of biological magnification be different at different levels of the ecosystem?
Bacteria and fungi are called decomposers.
Arrange the following in a correct sequence and form a food chain
Human → Insect → Algae → Fish
Give some examples for Biodegradable and Non-biodegradable waste.
| S. No. | Biodegradable waste | Non-biodegradable waste |
| 1. | Food Waste | Plastic Bottles |
| 2. | ||
| 3. | ||
| 4. | ||
| 5. |
______ obtained energy from the chemical breakdown of dead organisms.
Animals that eat both plants and animals are called as Carnivores.
In the following food chain, vertical arrows indicate the energy lost to the environment and horizontal arrows indicate energy transferred to the next trophic level. Which one of the three vertical arrows (A, C and E) and which one of the two horizontal arrows (B and D) will represent more energy transfer? Give reason for your answer.

A food chain in a forest ecosystem
If a harmful chemical enters a food chain comprising peacocks, plants, rats and snakes, which of these organisms is likely to have the highest concentration of the chemical in its body? Justify your answer. Name the process involved and define it.
