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प्रश्न
Draw the food chain with four trophic levels.
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उत्तर
A food chain with four trophic levels can be shown as follows.
Grass →Insect →Frog → Eagle
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संबंधित प्रश्न
Construct a food chain comprising the following :
Snakes, Hawk, Rats, Plants
Define decomposers.
Name one decomposer.
Give an example of a four step food chain operating in grassland. Name the secondary consumer in this food chain
Write down a food chain with five links in it.
A student went to study a local pond. In one part of the pond she noticed tadpoles scraping at some pond weed. In another part she saw a water beetle holding a tadpole in its jaws.
(a) Construct a food chain for the pond.
(b) How many links are there in this chain?
Write a common food chain of a pond ecosystem having four links.
Write one or two word for the following statement/definition :
Organisms which depend on the producers for food either directly or indirectly
The following is a food chain that ends with human :
plants → bee → human
How do bees provide food for humans?
What would happen to the number of grass plants and foxes if the number of rabbits decreased?
Will the levels of biological magnification be different at different levels of the ecosystem?
Explain why, the flow of energy in the ecosystem is said to be unidirectional.
What provides the energy which then flows through a food chain?
(a) glucose
(b) oxygen
(c) respiration
(d) sunlight
An aquatic food chain comprises of the organisms like tadpoles, weeds, fish and water beetles. The organism which gets the minimum energy through this food chain is :
(a) water beetles
(b) tadpoles
(c) weeds
(d) fish
Write the importance of the food chain.
In an ecosystem, herbivores represent ______.
Animals that eat both plants and animals are called as Carnivores.
In a food chain grasshopper gets energy by eating frog.
In a food chain, the third trophic level is always occupied by
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
