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प्रश्न
What will happen if we kill all the organisms in one trophic level?
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उत्तर
If we kill all the organisms in one trophic level, there will be no food for the organisms of the next trophic level, and they will die of starvation. Also, the organisms of the previous trophic levels will increase in number as there will be no organism to consume them as food.
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संबंधित प्रश्न
In a food chain of frog, grass, insect and snake, assign trophic level to frog.
"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?
What are trophic levels? Give an example of a food chain and state the different trophic levels in it.
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
What is the difference between the food habits of organisms belonging to the first and the third trophic levels? Give one example each of the organisms belonging to these two trophic levels.
Consider the food chain :
Grass → Deer → Lion
What will happen if all the lions are removed from the above food chain?
At which trophic level a person is feeding when he is eating bread.
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- grass, lion, rabbit, wolf
- plankton, man, fish, grasshopper
- wolf, grass, snake, tiger
- frog, snake, eagle, grass, grasshopper
One of the following is a micro-consumer. This one is :
(a) ant
(b) lice
(c) fungi
(d) mosquito
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Name two predators of snakes in a food web operating in a forest ecosystem.
Fill in the following blank with suitable word :
Grass → ........... → Human
Explain how harmful chemicals enter our bodies.
Will the levels of biological magnification be different at different levels of the ecosystem?
Explain why, the flow of energy in the ecosystem is said to be unidirectional.
Calculate the amount of energy that will be available to big fish in the following food chain, if 10,000 J of energy is available to small algae from the sun :
Small algae → Zooplankton → Fish → Big fish
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
Each level in the food chain is called a ______ level.
Animals that eat both plants and animals are called as Carnivores.
