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Questions
What is biological magnification?
What is meant by biological magnification?
Solution 1
Biological magnification is defined as the phenomenon of the accumulation or increase in the concentration of some toxic substances at each trophic level.
Solution 2
A progressive increase in the concentration of non-biodegradable substances in a food chain is called biological magnification.
Solution 3
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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Answer the following question.
Human body is made up of five important components, of which water is the main component. Food, as well as potable water, are essential for every human being. The food is obtained from plants through agriculture. Pesticides are being used extensively for a high yield in the fields. These pesticides are absorbed by the plants from the soil along with water and minerals and from the water bodies, these pesticides are taken up by the aquatic animals and plants. As these chemicals are not biodegradables, they get accumulated progressively at each trophic level. The maximum concentration of these chemicals gets accumulated in our bodies and greatly affects the health of our mind and body.
(a) Why is the maximum concentration of pesticides found in human beings?
(b) Give one method which could be applied to reduce our intake of pesticides through food to some extent.
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(b) Trophic level
(c) Ecosystem
(d) Biomagnification
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(a) Consumer
(b) Producer
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(d) Producer and decomposer
Give some examples for Biodegradable and Non-biodegradable waste.
| S. No. | Biodegradable waste | Non-biodegradable waste |
| 1. | Food Waste | Plastic Bottles |
| 2. | ||
| 3. | ||
| 4. | ||
| 5. |
