Home
Class 12
BIOLOGY
Which avian feature indicate reptilian a...

Which avian feature indicate reptilian ancestry ?
(a) Two special chambers crop and gizzard in digestive tract
(b) Eggs with calcareous shells
(c) Four chambered heart
(d) Scales on hind limbs

A

Two special chamers crop and gizzard in digestive tract

B

Eggs with calcareous shells

C

Four chambered heart

D

Scales on hind limbs

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • AVES THE - BIRDS

    DINESH PUBLICATION ENGLISH|Exercise CYG|10 Videos

  • AVES THE - BIRDS

    DINESH PUBLICATION ENGLISH|Exercise CYG|10 Videos

  • ASCHELMINTHES OR NEMATHELMINTHES

    DINESH PUBLICATION ENGLISH|Exercise MULTIPLE CHOICE QUESTIONS|182 Videos

  • BIODIVERSITY AND ITS CONSERVATION

    DINESH PUBLICATION ENGLISH|Exercise All Questions|365 Videos

Similar Questions

Explore conceptually related problems

Digestive tract with additional chamber crop and gizzard is a feature of

Given below are some general characters of a chordate . (A) skin is dry without glands, except oil gland at the base of the tail. (B) warm-blooded (homeothermic) animal. (C) The heart is completely four-chambered with right systemic arch. (D) The digestive tract has additional chambers , the crop and gizzard . Identify the animal on the basis of these characters.

Which one of the following has a four chambered heart? (a) frog (b) snake (c) crocodile (d) lizard

Which one of the following has a three chambered heart? (a) frog (b) snake (c) crocodile (d) lizard

The following organs appeared for the first time in amphibians (a) Syrinx, urinary bladder and cloaca (b) Tympanum , sternum and lacrimal glands (c) Harderian gland , sebaceous glands and lacrimal glands (d) Furcula, four chambered heart and palate.

Which one of the following statements is correct about the human circulatory system? (A) Blood transports only oxygen and not carbon dioxide. (B) Human heart has five chambers. (C) Valves ensure that the blood does not flow backwards. (D) Both oxygen-rich and oxygen-deficient blood gets mixed in the heart.

Which one of the following groups of animals is correctly matched with its one characteristic feature without even a single exception (a) Mammalia : Give birth to young ones . (b) Reptilia : Possess three - chambered heart with one incompletely divided ventricle (c) Chordata: Possess a mouth provided with an upper and a lower jaw (d) Chondrichthyes : Possess cartilaginous endoskeleton

Consider the following four statements (A-D) related to the common frog rane tigrina and select the correct option stating which ones are true (T) and which ones are false (F) Statements : (A) On dry land it would die due to lack of O_(2) of its mouth is farcibly kept closed for a few days (B) It has four-chambered heart (C) ON dry land it turns uricotelic from ureotelic (D) Its life-history is carried out in pond water

Which of the following events do not occur during joint diastole ? (A) All four chamber of heart are in relaxed state (B) Atrial repolarization valve open (C ) Action potential is conducted from SAN to AVN (D) Blood from the pulmonary veins and vena cava flows into the left and right ventricles respectively through the left and right atria (E ) The semilunar valves are closed

Pneumatic bones, four chambered heart and feathers occur in (a) Cyclostomata (b) Aves (c) Mammalia (d) Reptilia

DINESH PUBLICATION ENGLISH-AVES THE - BIRDS-RQ
  1. Function of amnion in birds is (a) Nutrition (b) Excretion (c) Pro...

    Text Solution

    |

  2. Which one is group of warm blooded animals? (a) Fishes (b) Amphibian...

    Text Solution

    |

  3. Which one has a raft- like keel, a preen gland and a penis? (a) Dromai...

    Text Solution

    |

  4. Match the coloumns : {:(,"Column I",,"Column II"),("(a)","Limbless r...

    Text Solution

    |

  5. Some vertebrae of birds are fused to form (a) Sacrum (b) Synsacrum ...

    Text Solution

    |

  6. Mycorrhiza is correctly described as

    Text Solution

    |

  7. Largest bird is (a) Kiwi (b) Emu (c) Penguin (d) Ostrich

    Text Solution

    |

  8. The scientific name of Peacock is

    Text Solution

    |

  9. Which avian feature indicate reptilian ancestry ? (a) Two special cham...

    Text Solution

    |

  10. Select the odd one from the list (a) Bubo bubo (b) Varanus bengalens...

    Text Solution

    |

  11. Which one is not flightless bird:

    Text Solution

    |

  12. Which of the following is not a flightless bird ?

    Text Solution

    |

  13. The structures furcula, urostyle, and endostyle are present respective...

    Text Solution

    |

  14. In birds foramen triosseum is present at the junction of

    Text Solution

    |

  15. Right ovary is rudimentary in

    Text Solution

    |

  16. Which is not correct about circulatory system of aves? (a) Heart is fo...

    Text Solution

    |

  17. Number of pairs of cranial nerves in birds is (a) 6 (b) 10 (c) 12...

    Text Solution

    |

  18. Adult bird normally possess only one functional (a) Ureter (b) Ovary ...

    Text Solution

    |

  19. The only true skin gland of the bird is

    Text Solution

    |

  20. In term of evolutionary origin, which one of the following is correct

    Text Solution

    |