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प्रश्न
What are the various steps of food chain called?
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उत्तर
The various steps of a food chain are called trophic levels.
संबंधित प्रश्न
"Energy flow in a food chain is unidirectional" Justify this statement.
"Our food grains such as wheat and rice, the vegetables and fruits and even meat are found to contain varying amounts of pesticide residues." State the reason to explain how and why it happens?
In the following food chain, 20,000 J of energy was available to the plants. How much energy would be available to man in this chain?
Plants → Sheep → Man
What name has been given to those organisms which break down the complex organic compounds present in dead animals and plants?
What is the role of decomposers in the ecosystem?
What is meant by a primary consumer, secondary consumer and a tertiary consumer? Give one example of each.
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 roasted chicken.
At which trophic level a person is feeding when he is eating bread.
In a food chain, the third trophic level is always occupied by :
(a) carnivores
(b) herbivores
(c) decomposers
(d) producers
One of the following is not a consumer. This one is :
(a) giraffe
(b) antelope
(c) algae
(d) alligator
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?
What would happen to the number of grass plants and foxes if the number of rabbits decreased?
What is meant by bioconcentration of pesticides
Name and state the law given by Lindeman which tells us how much energy entering a particular trophic level of organisms is available for trasnsfer to the next higher trophic level.
A food chain consists of fish, larvae, phytoplanktons and birds. The level of pesticides in water in which the fish, larvae and phytoplanktons live is quite high.
Which organism will have the maximum amount of pesticides accumulated through the food chain? What is this process known as?
Give one example of a food chain in an aquatic ecosystem?
Observe the food web and answer the questions given below:
Why do all food chains start with plants?
Differentiate between herbivores and carnivores.
