Home
Class 10
BIOLOGY
A food chain in a polluted aquatic ecosy...

A food chain in a polluted aquatic ecosystem is gven. Observe it and answer the following questions.
Fresh water`rarr` Algae `rarr` Fishes `rarr` Birds.
(i) Which organisms are disturbed more due to biomagniflcation ? Why ?
(ii) This ecosystem will be destroyed gradually due to blomagnification. Why?

Text Solution

Verified by Experts

(i) Bids are disturbed more due to biomagnification. As the birds occupy the top most level in the given food chain, the maximum concentratlon of harmful chemicals causing biomagnification get accumulated in their body.
(ii) Biomagnification is the process of accumulation of nondegradable chemicals in the various trophic levels of food chain .
As the chemicals are non-degradable or cannot be washed, they cannot be removed from the organisms of the food chain. This leads to gradual destroying of the ecosystem.
Promotional Banner

Topper's Solved these Questions

  • OUR ENVIRONMENT

    ZEN PUBLICATION|Exercise ZEN ADDITIONAL QUESTIONS SECTION ( SHORT ANSWER [ SA ] TYPE 2 QUESTIONS )|13 Videos

  • OUR ENVIRONMENT

    ZEN PUBLICATION|Exercise ZEN ADDITIONAL QUESTIONS SECTION ( LONG ANSWER (LA) QUESTIONS )|4 Videos

  • OUR ENVIRONMENT

    ZEN PUBLICATION|Exercise ZEN ADDITIONAL QUESTIONS SECTION ( VERY SHORT ANSWER [VSA] TYPE QUESTIONS )|30 Videos

  • LIFE PROCESSES

    ZEN PUBLICATION|Exercise ZEE ADDITIONAL QUESTIONS SECTIONS (LONG ANSWER [LA] TYPE QUESTIONS) |32 Videos

  • SUSTAINABLE MANAGEMENT OF NATURAL RESOURCES

    ZEN PUBLICATION|Exercise ZEE ADDITIONAL QUESTIONS SECTIONS (LONG ANSWER [LA] TYPE QUESTIONS)|16 Videos

Similar Questions

Explore conceptually related problems

A food chain in a polluted aquatic ecosystem is given. Observe it and answer the following questions. Fresh water to Algae to Fishes to Birds. (i) Which organisms are disturbed more due to biomagnification? Why? (ii) This ecosystem will be destroyed gradually due to biomagnification. Why?

Four elements A, B, C and D along with their electronic configuration are given below: Now answer the following questions: (i) Which two elements belong to the same period ? (ii) Which two elements belong to the same group ? (iii) Which element out of A and C is more reactive and why?

The position of elements A, B, C, D in the modern periodic table is given in the following table. Answer the following questions by observing the table: {:(,"Group 1","Group 2"),("Period 3",A,B),("Period 4", C,D):} i] Which element has the highest atomic size? Why? ii] Which element has the least metallic property? Why?