Home
Class 12
BIOLOGY
[A] : Man is the consumer of the ecosyst...

[A] : Man is the consumer of the ecosystem .
[R] : An antiforest conservation activity is felling of trees .

A

If both A and R are true and R is the correct explanation of A

B

If both A and R are true but R is not the correct explanation of A

C

If A is true and R is false

D

If both A and R are false

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • Drug Addiction

    TRUEMEN BIOLOGY ENGLISH|Exercise ASSERTION AND REASON|20 Videos

  • ECOSYSTEM

    TRUEMEN BIOLOGY ENGLISH|Exercise MCQ|178 Videos

Similar Questions

Explore conceptually related problems

A man-made ecosystem is

Man made ecosystems are

Choose the odd one w.r.t. ex-situ conservation strategies

What is the shape of the pyramid of number in a single tree ecosystem?

[A] : Endomycorrhiza of forest trees contribute to the efficient nutrient cycling in tropical test ecosystems . [R] : The fungi that form endomycorrhizal association with plants store nutrient ions and make them available to the host plants .

The given diagram represents the relationships between organisms in a remote pond ecosystem. From this information. Which of the following is the most likely to be correct? 1) DDT present in the ecosystem would accumulate to the highest concentrations in the tissues of detritivore 1. 2) The introduction of consumer 4 individuals from an external population would lead a temporary increase in number of producer 2. 3) Disease in the producer 1 population would lead to an increase in the producer 3 population. 4) Extermination of consumer 3 would cause a sustained increase in the population of consumer 2.

[A] : Presence of flavin nucleotide is essential for the activity of some enzymes . [R] : Flavin nucleotide is an activator of these enzymes .

A: Estuary constitutes one of the most productive ecosystem. R: It represents transition zone between two populations of a species.

Draw a diagram to show that the energy flow is an ecosystem is governmend by the law of conservation of energy.

[A] : The importance of ecosystem lies in flow of energy and cycling of materials . [R] : Pollutants do not change the equilibrium of environment .

TRUEMEN BIOLOGY ENGLISH-Ecology -ASSERTION AND REASON
  1. [A] : The pyramid of biomass indicates the decrease or the gradual red...

    Text Solution

    |

  2. [A] : Climate is affected by vegetation . [R] : The indirect factors...

    Text Solution

    |

  3. [A] : Man is the consumer of the ecosystem . [R] : An antiforest con...

    Text Solution

    |

  4. [A] : The importance of ecosystem lies in flow of energy and cycling o...

    Text Solution

    |

  5. [A] : Biomonitoring is reliable for determining the pollutants in air ...

    Text Solution

    |

  6. [A] : The food webs are very important in maintaining the stability of...

    Text Solution

    |

  7. [A] : If phytoplanktons are destroyed in the sea then it will effect t...

    Text Solution

    |

  8. [A] : Epiphytes are not found in Delhi . [R] : Delhi has semi-arid c...

    Text Solution

    |

  9. [A] : Water logged soils are physiologically dry . [R] : When the s...

    Text Solution

    |

  10. [A] : There is a chemical warfare amongst some plants . [R] : The ro...

    Text Solution

    |

  11. [A] : Total biomass on land is much more than that in water . [R] :...

    Text Solution

    |

  12. [A] : Epiphytes differs from Lianas in that they are not rooted in th...

    Text Solution

    |

  13. [A] : Biological indicators enhance usefulness of ecology to mankind ...

    Text Solution

    |

  14. [A] : Depletion of ozone layer results in human disease like cancer ....

    Text Solution

    |

  15. [A] : UV irradiation to disinfect polluted waters is not generally re...

    Text Solution

    |

  16. [A] : A species is an interbreeding population which is reproductively...

    Text Solution

    |

  17. [A] : Plants having capacity to withstand wide range of temperature t...

    Text Solution

    |

  18. [A] : Each food-level in an ecosystem is called trophic level . [R]...

    Text Solution

    |

  19. [A] : Biomonitoring is reliable for determing the pollutants in air ,...

    Text Solution

    |

  20. Assertion (A) : Tropical rain forests are disappearing fast from devel...

    Text Solution

    |