Home
Class 12
BIOLOGY
[A] : Pila is adopted to lead an amphibi...

[A] : Pila is adopted to lead an amphibious life .
[R] : It is provided with a pulmonary sac for aerial respiration and a gill or ctenidium for aquatic respiration .

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

  • ANATOMY OF FLOWERING PLANTS

    TRUEMEN BIOLOGY ENGLISH|Exercise MULTIPLE CHOICE QUESTIONS|192 Videos
  • ANIMAL KINGDOM -NONCHORDATES

    TRUEMEN BIOLOGY ENGLISH|Exercise MCQ|285 Videos

Similar Questions

Explore conceptually related problems

Respiration by gills or pulmonary sac are present in ?

[A] : Fermentation is a wasteful process. [R]: It yields only 5% of the energy provided by aerobic respiration.

Respiratory system plays an important role of enabling gas exchange and supply of oxygen to the animals. Although, the basic mechanism of the system remains same , animals display variation in their respiratory system. In the following columns match the animals with their organ for respiration. {:(,"Animal",," Respiratory"),(1,"Kangaroo",P,"Moist cuticle"),(2,"Pomfret ",Q,"Lungs"),(3,"Cockroach",R,"Gills"),(4,"Earthworm",S,"Tracheal tubes"):}

How many animals in the given list have gills for respiration ? Earthworm , Frog, Fish, Insects, Reptiles, Aquatic arthropods, Flatworm, Molluscs, Birds

Which of the following statements is/are correct or incorrect regarding Class Amphibia? (i) Body is divisible into head and trunk. Tail is present in some amphibians. (ii) Show respiration by gills, lungs and through skin. (iii) Has scales in all its members. (iv) Can lead dual life (aquatic and terrestrial) (v) Has eyelids.

Read the following statement (P - T) and select the option that correctly fills (i) - (v) P. The male frog has a special organ on the throat called ul("I") Q. ul("ii") membrane is a part of ear and serves to receive sound waves R. Dermis of the frog contains sac-like ul("iii") glands S. Tongue of frog is ul("iv") T . ul("v") respiration takes place in lungs on land.

The given graphs shows the productivity of an aquatic ecosystem measured in terms of dissolved oxygen produced and consumed by green plants and photosynthetic algae where PS=photosynthesis and R=respiration. What will happen during algal bloom? 1. PS will be increase, R will be decreased 2. PS will be decreased, R will be increased. 3. PS and R will not change. 4. PS+R will increase.

In normal respiration, contraction of which of the following muscles leads to a decrease in intra pulmonary pressure?

TRUEMEN BIOLOGY ENGLISH-Animal Kingdom -ASSERTION AND REASON
  1. [A] : All the gills of Palaemon are phyllobranchs . [R] : Each gill ...

    Text Solution

    |

  2. [A] : Renal-sac of Prawn functions in same manner as vertebrate kidney...

    Text Solution

    |

  3. [A] : Pila is adopted to lead an amphibious life . [R] : It is provi...

    Text Solution

    |

  4. [A] : Chordates have poor regeneration power while non-chordates have ...

    Text Solution

    |

  5. [A] : In lower invertebrates the digestion is intracellular while in h...

    Text Solution

    |

  6. [A] : Chordates have an oxygen carrying pigment called haemoglobin . I...

    Text Solution

    |

  7. [A] : Huxley comments that Birds are glorified reptiles . [R] : Bird...

    Text Solution

    |

  8. [A] : Birds excrete uric acid . [R] : Birds do not have a urinary b...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  13. Assertion: Kraits ar poisonous snakes. Reason: Belly scales are smal...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |