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प्रश्न
What is the role of decomposers in the ecosystem?
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उत्तर
Decomposers decompose dead plants and animals and hence act as cleansing agents of the environment.
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संबंधित प्रश्न
Which of the following are always at the second tropic level of food chains?
"Energy flow in a food chain is unidirectional" Justify this statement.
The first trophic level in a food chain is always a green plant. Why ?
List two main components of ecosystem?
What is biological magnification?
In the following food chain, plants provide 500 J of energy to rats. How much energy will be available to hawks from snakes?
Plants → Rats → Snakes → Hawks
Explain how the pesticides enter a food chain and subsequently get into our body.
Give an example of a four step food chain operating in grassland. Name the secondary consumer in this food chain
Write down a food chain in the sea.
At which trophic level a person is feeding when he is eating bread.
If a grasshopper is eaten by a frog, then the energy transfer will be from ______.
Organisms of a higher trophic level which feed on several types of organisms belonging to a number of lower trophic levels constitute the ______.
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
Name the organism which Y could be.
Write the percentage of energy transferred from autotrophs to the next level in a food chain.
If 5 joules of energy is available at producer level (plants), then how much energy will be transferred to the lion in the following food chain?
Plants → Goat → Lion
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.
If 100 J energy is available at the producer level in a food chain then the energy available to the secondary consumer will be ______.
Analogy:
Primary Consumer: Goat, Cow:: Secondary Consumer: ______.
Which statement is correct with respect to the food chain?
