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प्रश्न
Fill in the following blank with suitable word :
In nature, all green plants are............ whereas animals are consumers.
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उत्तर
In nature, all green plants are producers, whereas animals are consumers.
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संबंधित प्रश्न
Why are plants called producers?
What is a trophic level?
Draw the food chain with four trophic levels.
In a food chain, the third trophic level is always occupied by :
(a) carnivores
(b) herbivores
(c) decomposers
(d) producers
If a grasshopper is eaten by a frog, then the energy transfer will be from ______.
One of the following is not a consumer. This one is :
(a) giraffe
(b) antelope
(c) algae
(d) alligator
One of the following is a micro-consumer. This one is :
(a) ant
(b) lice
(c) fungi
(d) mosquito
A food chain occurring in the sea which provides food for many people can be written as :
phytoplankton → zooplankton → X → Y
Name two zooplanktons.
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?
In a food chain consisting of grass, frog, bird and insects, where will the concentration of the harmful chemicals be maximum?
Explain why, the flow of energy in the ecosystem is said to be unidirectional.
Explain why, a food chain usually cannot have more than three or four steps.
Which of the following gets the minimum energy through the food chain in an ecosystem?
(a) carnivore
(b) large carnivore
(c) producer
(d) herbivore
The surface of water in a lake appears green due to a layer of tiny free-floating organisms X on its surface. The lake water also contains organisms like water beetle, fish and tadpole. The sun shines over the lake water and provides energy for the functioning of this lake ecosystem.
(a) What could organisms X be?
(b) Write a food chain comprising of all the four organisms mentioned.
(c) What is the general name of the food chains like the one written above?
(d) Name (i) secondary consumer (ii) producer (iii) tertiary consumer, and (iv) primary consumer, in the above food chain.
(e) If the tertiary consumer gets 0.2 J of energy from the secondary consumer, then how much energy was radiated by the sun to the producer?
Bacteria and fungi are called decomposers.
Green plants utilize ______ percent of sun’s energy to prepare their food by the process of photosynthesis.
Which of the following is a logical sequence of food chain?
______ obtained energy from the chemical breakdown of dead organisms.
Which statement is correct with respect to the food chain?
Use of several pesticides which results in excessive accumulation of pesticides in rivers of ponds, is a matter of deep concern. Justify this statement.
