Home
Class 12
BIOLOGY
[A] : A species is an interbreeding popu...

[A] : A species is an interbreeding population which is reproductively isolated from other similar but morphologically distinct populations .
[R] : Each species has its own niche which is not utilized exactly by another species .

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

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • Drug Addiction

    TRUEMAN BIOLOGY|Exercise ASSERTION AND REASON|20 Videos
  • ECOSYSTEM

    TRUEMAN BIOLOGY|Exercise MCQ|179 Videos

Similar Questions

Explore conceptually related problems

A species was defined as a population of interbreeding inviduals and reproductively isolated from other populations by

Related species which are reproductively isolated but morphologically similar are called

A true species consists of a population which is

Population which are closely related, morphologically similar and symmetric but reproductively isolated are designated as

Statement (S): Species are groups of potentially interbreeding natural populations that are isolated from other such groups Reason (R): Reproductive isolation brings about distinctive morphological characters

Formation of two species from one contiuously interbreeding population is

[A]: Random mutations together with genetic drifts and selection pressure establish genetic difference and morphological and physiological variations in formerly identical populations. [R]: These differences generally accumulate and thus lead to the establishment of clines, geographical races and finally distinct sub- species.

[A]: According to Hardy-Weinburg law both gene frequencies and genotype frequencies will remain constant from generation to generation in an infinitely large interbreeding population. [R]: Alleles segregating in a population tend to establish an equilibrium with reference to each other, thus maintain both frequencies constant.

Which one of the following plants shows a very close relationship with a species of moth, where none of the two can complete its life cycle without the other

Species which occupy similar niches in different geographical regions are called which one fo the following?

TRUEMAN BIOLOGY-Ecology -ASSERTION AND REASON
  1. [A] : Light is the energy which is stored as chemical energy in the fo...

    Text Solution

    |

  2. [A] : Flora and Fauna of different parts of the world do not show unif...

    Text Solution

    |

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

    Text Solution

    |

  4. [A] : Mimicry is a device adopted to protect the organism from its ene...

    Text Solution

    |

  5. [A] : Biological magnification is concentration of substances instead ...

    Text Solution

    |

  6. [A] : The rate of energy storage at consumer levels are referred to as...

    Text Solution

    |

  7. [A] : Primary productivity is shown by green plants only . [R] : Pri...

    Text Solution

    |

  8. [A] : Energy pyramid is sloping . [R] : The energy of one trophic le...

    Text Solution

    |

  9. [A] : The biotic community and the non living environment of an area f...

    Text Solution

    |

  10. [A] :Green plants ara secondary consumers [R]: Microconsumers break...

    Text Solution

    |

  11. [A] : A food chain is a group of organism in which there is a transfer...

    Text Solution

    |

  12. [A] : Food chains are not paths of energy flow through an ecosystem. ...

    Text Solution

    |

  13. [A] : There is a grudual increase in the energy content at successive ...

    Text Solution

    |

  14. [A] : There is a gradual increase in the energy content at successive ...

    Text Solution

    |

  15. [A] : Carbon monoxide is poisonous . [R] : It destroys RBC .

    Text Solution

    |

  16. [A] : An estimation of B.O.D gives an indication of the amount of poll...

    Text Solution

    |

  17. [A] : PAN is a secondary pollutant . [R] : The secondary pollutants ...

    Text Solution

    |

  18. [A] : Soil particles , particularly clay and organic matter in soil , ...

    Text Solution

    |

  19. [A] : Algal blooms deplete dissolved O(2) levels in polluted water bod...

    Text Solution

    |

  20. [A] : Orchids are most threatened plants in tropics . [R] : Tropical...

    Text Solution

    |