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What Provides the Energy Which Then Flows Through a Food Chain? (A) Glucose (B) Oxygen (C) Respiration (D) Sunlight - Science

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प्रश्न

What provides the energy which then flows through a food chain?
(a) glucose
(b) oxygen
(c) respiration
(d) sunlight

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उत्तर

 Sunlight
Sunlight provides energy to plants for preparing food, and this energy is then passed on to the next trophic levels through a food chain.

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पाठ 5: Our Environment - Exercise 2 [पृष्ठ २४२]

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लखमीर सिंह Biology (Science) [English] Class 10
पाठ 5 Our Environment
Exercise 2 | Q 39 | पृष्ठ २४२

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संबंधित प्रश्‍न

In a food chain of frog, grass, insect and snake, assign trophic level to frog.


Give reason to justify the following: The existence of decomposers is essential in a biosphere.


Which of the following constitute a food-chain?


The following statement is true or false :
 In biology, human beings are called producers.


Which organisms belong to third and fourth trophic levels in the food chain comprising the following?
Rats, Plants, Hawk, Snakes


Fill in the following blank with suitable word :

A series of organisms, each of which feeds on the next organism, the beginning of which is a green plant, is called a .............


Explain the terms 'producer' and 'consumer'. Give two examples of producers and two of consumers.


What is a trophic level?


Draw the food chain with four trophic levels.


Write down a food chain which ends with humans.


Construct a long food chain.


Give two differences between food chain and food web.


Fill in the following blank with suitable word :

Plants → Antelope → ............


Explain why, the flow of energy in the ecosystem is said to be unidirectional.


If the energy available at the producer level in a food chain is 150 J, how much energy will be transferred to : tertiary consumer?
(a) 15 J
(b) 10 J
(c) 1.50 J
(d) 0.15 J


A forest ecosystem having a lot of green plants has some foxes, lions and rabbits in it.
(a) Write a food chain comprising all the four organisms mentioned above.
(b) Name (i) one herbivore, and (ii) two carnivores, in this food chain.
(c) Name the link which is a predator as well as a prey.
(d) Name (i) second trophic level, and (ii) third trophic level.
(e) Which link of this food chain can feed on second trophic level as well as third trophic level, independently?
(f) If the sun provides 1000 J of energy to the plants, then how much energy will be transferred to fox through the food chain.


What are decomposers? What will be the consequence if the decomposers are completely eradicated from an ecosystem? Give justification in support of your answer.


Give one example of a food chain in an aquatic ecosystem?


In an ecosystem, herbivores represent ______.


Food chains are very important for the survival of most species.

Matter and energy are two fundamental inputs of an ecosystem. Movement of:


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