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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
In a food chain of frog, grass, insect and snake, assign trophic level to frog.
Give reason to justify the following: Flow of energy in a food chain is unidirectional.
Why are green plants called producers?
List two main components of ecosystem?
What is biological magnification?
Why are plants called producers?
Which of the following belong to the same trophic level?
Tree ; Frog ; Snake ; Grass ; Lizard
What is a 'food web'? Show its formation.
In a food chain, the initial organism is usually :
(a) photosynthetic
(b) herbivore
(c) saprophytic
(d) parasitic
The sea water contains water beetles, tadpole, fish and weeds.
Which organisms can trap solar energy to make food?
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
Fill in the following blank with suitable word :
Plants → Antelope → ............
Explain how harmful chemicals enter our bodies.
'If we excessively use pesticides to protect the crops from diseases, then it may cause long-term damage to mankind'. Justify this statement.
Will the levels of biological magnification be different at different levels of the ecosystem?
Which common pesticide has accumulated in human body in considerable amounts?
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?
What are decomposers? What will be the consequence if the decomposers are completely eradicated from an ecosystem? Give justification in support of your answer.
Write the importance of the food chain.
Define – Heterotrophs.
