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प्रश्न
Write an aquatic food chain.
उत्तर
An aquatic food chain is one that operates in a water body such as a pond, a lake, or an ocean.
Phytoplankton → Zooplankton → Small Fish → Larger Fish → Sharks
In this aquatic food chain, energy flows from the producers (phytoplankton) up through various consumer levels to the apex predators (sharks). Each level plays a role in ecosystem stability, nutrient cycling, and energy transfer.
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संबंधित प्रश्न
Why are plants called producers?
Which organisms belong to third and fourth trophic levels in the food chain comprising the following?
Rats, Plants, Hawk, Snakes
What are trophic level?
Write down a food chain with five links in it.
In a food chain, the third trophic level is always occupied by :
(a) carnivores
(b) herbivores
(c) decomposers
(d) producers
One of the following is not a consumer. This one is :
(a) giraffe
(b) antelope
(c) algae
(d) alligator
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 |
With the help of a food chain, explain how biological magnification of harmful chemicals can occur.
What percentage of sun's energy falling on the leaves of green plants is utilised by the plants in the process of photosynthesis and stored as chemical energy of food?
(a) 99 per cent
(b) 10 per cent
(c) 1 per cent
(d) 20 per cent
Arrange the following in a correct sequence and form a food chain
Human → Insect → Algae → Fish
