Home
Class 12
BIOLOGY
The highest DDT concentration in aquatic...

The highest DDT concentration in aquatic food chain shall occur in

A

phytoplankton

B

seagull

C

crab

D

eel

Text Solution

Verified by Experts

The correct Answer is:
B
DDT is a toxic substance which gets concentrated subsequently in a food chain of an aquatic ecosystem in the following manner:
`underset("(0.04 ppm)")("Phytoplanktons")rarr underset("(0.5 ppm)")("Eel") rarr underset("(2 ppm)")("Crab")rarr underset("(25 ppm)")("Seagull")`
Thus, the animal or organism acquiring the highest position in a food chain would have the highest DDT concentration (here seagull).
Promotional Banner

Topper's Solved these Questions

  • ENVIRONMENTAL ISSUES

    ARIHANT NEET|Exercise Chapter exercises (B) Medical entrances special format questions (Assertion-Reason)|11 Videos

  • ECOSYSTEM

    ARIHANT NEET|Exercise Exercises C Medical entrances gallery (collection of questions Asked in NEET & Various Medical Entrance Exams)|77 Videos

  • EVIDENCES OF EVOLUTION

    ARIHANT NEET|Exercise Chapter exercises (Medical entrances gallery)(Collection of questions Asked in NEET & Various Medical Entrance Exams )|58 Videos

Similar Questions

Explore conceptually related problems

Food chain is

Food chain is

Write an aquatic food chain.

Food chain is:

Highest auxin concentration occurs

The other all organism in an aquatic food chain is

ARIHANT NEET-ENVIRONMENTAL ISSUES-Chapter exercises ( C) Medical entrances gallery (Collection of Questions Asked in NEET & in Various Medical Entrance Exams)
  1. Biochemical Oxygen Demand (BOD) may not be a good index for pollution ...

    Text Solution

    |

  2. A lake which is rich in organic waste may result in

    Text Solution

    |

  3. The highest DDT concentration in aquatic food chain shall occur in

    Text Solution

    |

  4. Joint Forest Management Concept was introduced in India during

    Text Solution

    |

  5. A river with an inflow of domestic sewage rich in organic waste may r...

    Text Solution

    |

  6. Depletion of which gas in the atmosphere can lead to an increased inci...

    Text Solution

    |

  7. Identify the wrong statements with reference to UV rays

    Text Solution

    |

  8. Which the following are most suitable indicators of SO(2) pollution in...

    Text Solution

    |

  9. The UN Conference of Parties on climate change in the year 2012 was he...

    Text Solution

    |

  10. Increase in concentration of the toxicant at successive trophic levels...

    Text Solution

    |

  11. Acid rain is caused by increase in the atmospheric concentration of :

    Text Solution

    |

  12. The UN Conference of Parties on climate in the year 2011 was held in:

    Text Solution

    |

  13. Rachel Carson's famous book "Silent Spring" is related to:

    Text Solution

    |

  14. Which of the following is not one of the prime health risks associated...

    Text Solution

    |

  15. Match the following Columns. {:("Column I","Column II"),("A. Mercur...

    Text Solution

    |

  16. Anxiety and stress are caused by

    Text Solution

    |

  17. Now-a-days use of DDT as insecticide is banned because

    Text Solution

    |

  18. Match the following Columns. {:("Column I","Column II"),("A. Photoc...

    Text Solution

    |

  19. Natural insecticide which is obtained form neem is

    Text Solution

    |

  20. Greenhouse effect is due to the

    Text Solution

    |