Home
Class 12
BIOLOGY
[A] : Sphenodon is referred to as a livi...

[A] : Sphenodon is referred to as a living fossil .
[R] : It has retained many primitive characteristics of fossil or stem reptiles belonging to permain period.

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

  • ANATOMY OF FLOWERING PLANTS

    TRUEMAN BIOLOGY|Exercise MULTIPLE CHOICE QUESTIONS|194 Videos
  • ANIMAL KINGDOM -NONCHORDATES

    TRUEMAN BIOLOGY|Exercise MCQ|283 Videos

Similar Questions

Explore conceptually related problems

Cycas is living fossil as it has

An aquatic living fossil, with ancient origin and many primitive characters which respires through book lungs is

The most primitive mollusc and living fossil is

A primitive mammal like fossil reptile of carboniferous period was

An oldest 'living fossil' that has not changed for the last several thousand years, is

An ideal evolutionary classification is not possible because: 1. an organism shows both advanced and primitive characters 2. evolution occurs in many directions 3. fossil ancestry is not fully explored 4. all of the above.

Living fossil lizard of New Zeal and / Sphenodon belongs to

TRUEMAN BIOLOGY-Animal Kingdom -ASSERTION AND REASON
  1. [A] : Birds excrete uric acid . [R] : Birds do not have a urinary b...

    Text Solution

    |

  2. [A] : In elastic lungs of birds are supplemented by remarkable system ...

    Text Solution

    |

  3. [A] : Sphenodon is referred to as a living fossil . [R] : It has ret...

    Text Solution

    |

  4. [A] : In reptiles , lizards show autotomy . [R] : Tail of most lizar...

    Text Solution

    |

  5. [A] : Heloderma is called beaded lizard . [R] : Its scales resemble ...

    Text Solution

    |

  6. Assertion: Krait is poisonous snakes. Reason: Belly scales are small...

    Text Solution

    |

  7. [A] : In the adult bird , only the left ovary is well developed . [R...

    Text Solution

    |

  8. [A] : Rabbit is classified as mammal . [R] : Rabbit possesses mammar...

    Text Solution

    |

  9. [A] : Origin of mammals is polyphyletic . [R] : Mammals are derived...

    Text Solution

    |

  10. [A] : The Ascidian tadpole larva possess all the basic chordate charac...

    Text Solution

    |

  11. [A] : Tail wagging dance is performed for short distances . It conveys...

    Text Solution

    |

  12. [A] : A pair of coxal glands are found in each side of metasoma of sco...

    Text Solution

    |

  13. [A] : Honey bees are social insects known for producing honey and bees...

    Text Solution

    |

  14. Assertion : Cold blooded animals do not have fat layer. Reason : Col...

    Text Solution

    |

  15. [A] : Neoteny is the retention of larval form throughout the life . ...

    Text Solution

    |

  16. [A] : In Parthenogenesis , fertilized egg is stimulated to divide . ...

    Text Solution

    |

  17. [A] : Protozoans have no physiological division of labour . [R] : Th...

    Text Solution

    |

  18. [A] : Visceral leishmaniasis is caused by the sand flies . [R] : Whe...

    Text Solution

    |

  19. [A] : Many desert mammals cool the exhaled air in their noses , befor...

    Text Solution

    |

  20. [A] : Amoeba is regarded as the lowest form of animals. [R] : Body o...

    Text Solution

    |