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प्रश्न
What would happen to the number of grass plants and foxes if the number of rabbits increased?
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उत्तर
If the number of rabbits increases, it will lead to rabbits consuming more grass plants, and hence grass plants will become sparser. As foxes consume rabbits, any increase in the number of rabbits will lead to an increase in the number of foxes.
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संबंधित प्रश्न
"Energy flow in a food chain is unidirectional" Justify this statement.
List two biotic components of a biosphere.
What name has been given to those organisms which break down the complex organic compounds present in dead animals and plants?
Write an aquatic food chain.
Explain the terms 'producer' and 'consumer'. Give two examples of producers and two of consumers.
At which trophic level a person is feeding when he is eating apple.
Construct a long food chain.
Write one or two word for the following statement/definition :
Each level of food chain where transfer of energy takes place
Which of the following is not a producer?
(a) grass
(b) zooplankton
(c) phytoplankton
(d) paddy
A food chain occurring in the sea which provides food for many people can be written as :
phytoplankton → zooplankton → X → Y
Name one phytoplankton.
Why are there rarely more than five links (or five organisms) in a food chain?
Which of the following limits the number of trophic levels in a food chain?
(a) insufficient food supply from producer level
(b) decrease in energy at higher trophic levels
(c) increase in the number of organisms at higher trophic levels
(d) accumulation of harmful chemicals at higher trophic levels
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?
What would happen if an organism is removed from the food chain?
If 100 J energy is available at the producer level in a food chain then the energy available to the secondary consumer will be ______.
Natural agents like ______ are the decomposition factors breaking complex forms into simpler units.
Define – Heterotrophs.
Assertion (A): The energy which passes to the herbivores does not come back to autotrophs.
Reason (R): The flow of energy in a food chain is unidirectional.
