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प्रश्न
Define decomposers.
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उत्तर
Micro-organisms that break down the complex organic compounds present in dead plants and animals and their products, such as faeces and urine, into simpler substances are called decomposers.
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संबंधित प्रश्न
What will be the amount of energy available to the organisms of the 2nd trophic level of a food chain if the energy available at the first trophic level is 10,000 joules?
Give reason to justify the following: The existence of decomposers is essential in a biosphere.
Why are plants called producers?
Which of the following belong to the same trophic level?
Tree ; Frog ; Snake ; Grass ; Lizard
Name the organisms belonging to the second and the fourth trophic levels in the food chain comprising the following :
Frogs, Plants, Snakes, Hawk, Insects
Construct a food chain comprising the following :
Snakes, Hawk, Rats, Plants
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.
Write down a food chain in the sea.
Write one or two word for the following statement/definition :
Organisms which depend on the producers for food either directly or indirectly
One of the following is a micro-consumer. This one is :
(a) ant
(b) lice
(c) fungi
(d) mosquito
In the food chain comprising of a snake, grass, insect, and frog, the secondary consumer is :
(a) insect
(b) snake
(c) frog
(d) grass
The sea water contains water beetles, tadpole, fish and weeds.
Which organisms can trap solar energy to make food?
What percentage of sun's energy falling on the leaves of green plants is utilised by the plants in the process of photosynthesis and stored as chemical energy of food?
(a) 99 per cent
(b) 10 per cent
(c) 1 per cent
(d) 20 per cent
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
Bacteria and fungi are called decomposers.
Arrange the following in a correct sequence and form a food chain
Human → Insect → Algae → Fish
What would happen if an organism is removed from the food chain?
In a given food chain if the amount of energy at the fourth trophic level is 6 kJ, what will be the energy available at the producer level?
