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प्रश्न
What is biological magnification?
What is meant by biological magnification?
उत्तर १
Biological magnification is defined as the phenomenon of the accumulation or increase in the concentration of some toxic substances at each trophic level.
उत्तर २
A progressive increase in the concentration of non-biodegradable substances in a food chain is called biological magnification.
उत्तर ३
The increase in the concentration of harmful substances, such as pesticides, in the bodies of living organisms at each level of a food chain is called biological magnification.
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संबंधित प्रश्न
Why are green plants called producers?
Name the organisms belonging to the second and the fourth trophic levels in the food chain comprising the following :
Frogs, Plants, Snakes, Hawk, Insects
Construct a food chain comprising the following :
Snakes, Hawk, Rats, Plants
Write down a food chain which ends with humans.
What is a food chain?
If a grasshopper is eaten by a frog, then the energy transfer will be from ______.
The decomposers in an ecosystem ______.
One of the following is not a consumer. This one is :
(a) giraffe
(b) antelope
(c) algae
(d) alligator
The sea water contains water beetles, tadpole, fish and weeds.
Which organisms in the food chain are herbivore, and carnivores?
Fill in the following blank with suitable word :
Lettuce → ............. → Fox
If the energy available at the producer level in a food chain is 150 J, how much energy will be transferred to : tertiary consumer?
(a) 15 J
(b) 10 J
(c) 1.50 J
(d) 0.15 J
Primary consumers that eat plants are called _______.
Give one example of a food chain in an aquatic ecosystem?
Which of the following is a logical sequence of food chain?
Define – Heterotrophs.
What will happen if deer is missing in the food chain given below?
Grass → Deer → Tiger
If a harmful chemical enters a food chain comprising peacocks, plants, rats and snakes, which of these organisms is likely to have the highest concentration of the chemical in its body? Justify your answer. Name the process involved and define it.
