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प्रश्न
Will the levels of biological magnification be different at different levels of the ecosystem?
उत्तर १
उत्तर २
The level of these harmful substances will go on increasing from one trophic level to the next. When certain harmful substances enter the food chain at the level of primary producers, they get concentrated many times at each subsequent trophic level.
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संबंधित प्रश्न
What are trophic levels? Give an example of a food chain and state the different trophic levels in it.
The following statement is true or false :
Secondary consumers and tertiary consumers, both are carnivores.
A food chain represents a unidirectional flow of X. What is X?
What is the role of decomposers in the ecosystem?
What will happen if we kill all the organisms in one trophic level?
Construct a long food chain.
The following is a food chain that ends with human :
How does this food chain differ form a usual food chain involving human such as : plants → goat → human?
A food chain occurring in the sea which provides food for many people can be written as :
phytoplankton → zooplankton → X → Y
Name two zooplanktons.
Name the process in which a harmful chemical enters the food chain and gets concentrated at each trophic level.
Explain how harmful chemicals enter our bodies.
In the food chain given below, if the amount of energy available at fourth trophic level is 5 kJ, what was the energy available at the producer level?
Grass → Grasshopper → Frog → Snake → Hawk
(a) 500 kJ
(b) 50 kJ
(c) 5000 kJ
(d) 5 kJ
A food chain comprises of cat, seed-eating bird, plants, and dog. The organism which will have the maximum concentration of harmful pesticides coming through the food chain is most likely to be :
(a) cat
(b) plants
(c) dog
(d) seed-eating bird
"Energy flow in food chains is always unidirectional". Justify this statement. Explain how the pesticides enter a food chain and subsequently get into our body.
Primary consumers that eat plants are called _______.
What would happen if an organism is removed from the food chain?
The process of accumulation of harmful chemical substances like pesticides, in the body of living organisms at each trophic level of a food chain is known as ______.
Which of the following is a logical sequence of food chain?
In a food chain grasshopper gets energy by eating frog.
Define – Heterotrophs.
What will happen if deer is missing in the food chain given below?
Grass → Deer → Tiger
