Home
Class 11
BIOLOGY
Assertion: Platyhelminthes are generally...

Assertion: Platyhelminthes are generally hermaphrodites.
Reason: In Platyhelminthes, fertilisation is internal.

A

If both assertion and reason are true and reason is the correct explanation of assertion.

B

If both assertion and reason are true but reason is not the correct explanation of assertion.

C

If assertion is true but reason is false.

D

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
b

Platyhelminthes are generally hermaphrodites, i.e., both the sexes are present in one organism. They show internal and cross fertilisation where male gametes of one organism fertilise female gametes of another organism.
Promotional Banner

Topper's Solved these Questions

  • ANATOMY OF FLOWERING PLANTS

    NCERT FINGERTIPS|Exercise Anatomy Of Flowering Plants|143 Videos
  • BIOLOGICAL CLASSIFICATION

    NCERT FINGERTIPS|Exercise Biological Classification|132 Videos

Similar Questions

Explore conceptually related problems

Platyhelminthes || Nematodes

Free-living Platyhelminthes is

Coelenterata || Platyhelminthes

Platyhelminthes represent an examples of

Phylum Platyhelminthes (Flatworms)

Assertion: The members of platyhelminthes are commonly called flatworms. Reason: Platyhelminthes have dorso-ventrally flattened body.

In platyhelminthes, the excretory organs are

Which one is not a platyhelminthes?

NCERT FINGERTIPS-ANIMAL KINGDOM-Animal Kingdom
  1. Which one of the following is oviparous ?

    Text Solution

    |

  2. Which one of the following is not a poisonous snake ?

    Text Solution

    |

  3. Match the following list of animals with their level of organisation. ...

    Text Solution

    |

  4. Body cavity is the cavity present between body wall and gut wall. In s...

    Text Solution

    |

  5. Match of column A with column B and choose the correct option. {:("C...

    Text Solution

    |

  6. Assertion : Sponges exhibit cellular level of organisation. Reason: ...

    Text Solution

    |

  7. Assertion : Cnidoblasts are present on the tentacles and the body in c...

    Text Solution

    |

  8. Assertion: Digestion is chiefly extracellular in Ctenophores. Reason...

    Text Solution

    |

  9. Assertion: Platyhelminthes are generally hermaphrodites. Reason: In ...

    Text Solution

    |

  10. Assertion :Digested and semi-digested food is absorbed by body surface...

    Text Solution

    |

  11. Assertion:Aschelminthes are called as pseudo-coelomates. Reason : In...

    Text Solution

    |

  12. Assertion:In molluscs, feather-like gills are present in mantle cavity...

    Text Solution

    |

  13. Assertion:The body of hemichordates is divisible into proboscis, colla...

    Text Solution

    |

  14. Assertion:Claspers are a distinguishing feature of males in Class Chon...

    Text Solution

    |

  15. Assertion: Osteichthyes fishes swim constantly to avoid sinking . Re...

    Text Solution

    |

  16. Assertion: Amphibian males and females produce lot of gametes. Reaso...

    Text Solution

    |

  17. Assertion:Calotes, Crocodilus and Chelone are members of Class Reptili...

    Text Solution

    |

  18. Assertion: In birds , the skin is moist. Reason: Moist skin of birds...

    Text Solution

    |

  19. Assertion:Air sacs are connected to lungs in Class Aves. Reason: Air...

    Text Solution

    |

  20. Assertion:Mammalian teeth are heterodont. Reason: Mammalian teeth ar...

    Text Solution

    |