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प्रश्न
At which trophic level a person is feeding when he is eating fish.
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उत्तर
Fourth trophic level.
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संबंधित प्रश्न
We do not clean natural ponds or lakes but an aquarium needs to be cleaned regularly. Why is it so ? Explain.
Which of the following constitute a food-chain?
Which of the following belong to the same trophic level?
Goat ; Spider ; Plants ; Hawk ; Rat
Write an aquatic food chain.
At which trophic level a person is feeding when he is eating apple.
Write one or two word for the following statement/definition :
Organisms which depend on the producers for food either directly or indirectly
Which of the following represents a possible food chain found in a pond :
| Primary producers |
Primary consumers | Secondary consumers |
| (a) green algae | fish | mosquito larvae |
| (b) fish | green algae | mosquito larvae |
| (c) mosquito larvae | fish | green algae |
| (d) green algae | mosquito larvae | fish |
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?
Which of the following is not a producer?
(a) grass
(b) zooplankton
(c) phytoplankton
(d) paddy
One of the following is a micro-consumer. This one is :
(a) ant
(b) lice
(c) fungi
(d) mosquito
Give one example of a food chain having four organisms. Below each organism write the three appropriate terms from the part (a) above which you think it represents.
With the help of a food chain, explain how biological magnification of harmful chemicals can occur.
What is meant by bioconcentration of pesticides
Explain why, a food chain usually cannot have more than three or four steps.
What provides the energy which then flows through a food chain?
(a) glucose
(b) oxygen
(c) respiration
(d) sunlight
Which of the following gets the minimum energy through the food chain in an ecosystem?
(a) carnivore
(b) large carnivore
(c) producer
(d) herbivore
Arrange the following in a correct sequence and form a food chain
Human → Insect → Algae → Fish
Green plants utilize ______ percent of sun’s energy to prepare their food by the process of photosynthesis.
Which of the following is an autotroph?
Each level in the food chain is called a ______ level.
