Home
Class 12
BIOLOGY
Assertion: Eichhornia crassipes was intr...

Assertion: Eichhornia crassipes was introduced in India because of its beautiful flowers and shape of leaves.
Reason: Water hyacinth propagate vegetatively at a phenomenal rate.

Text Solution

Verified by Experts

The correct Answer is:
B
Eichhornia crassipes was introduced in India because of its beautiful flowers and shape of leaves.
water hyacinth drains oxygen from the water, which leads to death of the fishes.
Promotional Banner

Topper's Solved these Questions

  • REPRODUCTIVE IN ORGANISMS

    A2Z|Exercise SECTION C: Previous Years' Examination Questions (NEET/AIPMT Questions)|22 Videos

  • REPRODUCTIVE IN ORGANISMS

    A2Z|Exercise SECTION C: Previous Years' Examination Questions (AIIMS Questions)|9 Videos

  • REPRODUCTIVE IN ORGANISMS

    A2Z|Exercise Section A: Topicwise Questions (topic 3: Fertilisation And Post-fertilisation Events) The Zygote And|19 Videos

  • REPRODUCTIVE HEALTH

    A2Z|Exercise Section D: Chapter-end Test|50 Videos

  • SEXUAL REPRODUCTION IN FLOWERING PLANTS

    A2Z|Exercise Section D Chapter-end Test|50 Videos

Similar Questions

Explore conceptually related problems

This plant was introduced in India because of its beautiful flowers and shape of leaves but it became a notorious weed in Indain water bodies. Identify this plant.

Assertion: Water hyacinth spread all over the water body in a short period of time and it is very difficult to get rid of them. Reason: Water hyacinth propagate vegetatively at a phenomenal rate.

Assertion : Water hyacinth is an invasive aquatic plant which speads all over the water in a short period of time. Reason : Water hyacinth can reproduce vegetatively.

Assertion: Water hyacinth were introduced into India for their lovely flowers. Reason: The Flowers of the Eichhornia are mauve coloured.

Read the following statements about 'Terror of Bengal' and select the correct ones. (i) 'Terror of Bengal' is the name given to water hyacinth (Eichhornia), an algae. (ii) Eichhornia was introduced in India due to its aesthetic value. (iii) Eichhornia drains oxygen from the water which leads to death of fishes.

Assertion : The difference in shapes of leaves produced in air and those produced in water in buttercup represent the heterophyllous development due to environment. Reason : The phenomenon of heterophylly is an example of plasticity.

Assertion: Water hyacinth caused havoc in India. Reason: Water hyacinth causing blocks in our waterways by their excessive growth.

A2Z-REPRODUCTIVE IN ORGANISMS-Section B: Assertion-reasoning Questions
  1. Assertion: The sizes of crows and parrots are not very different yet t...

    Text Solution

    |

  2. Assertion: During asexual reproduction, the offspring that are produce...

    Text Solution

    |

  3. Assertion: In Protists and Monerans, the cell division is itself a mod...

    Text Solution

    |

  4. Assertion: Vegetative propagation is a type of asexual reproduction. ...

    Text Solution

    |

  5. Assertion: Water hyacinth spread all over the water body in a short pe...

    Text Solution

    |

  6. Assertion: Eichhornia crassipes was introduced in India because of its...

    Text Solution

    |

  7. Assertion: In sexualreproduction, offspring are not identical to the p...

    Text Solution

    |

  8. Assertion: Bamboo species flower only once in their life, generally af...

    Text Solution

    |

  9. Assertion: Cow,sheep and rats are non-primate mammals exhibiting oestr...

    Text Solution

    |

  10. Assertion: The events of the sexual reproduction though elaborate and ...

    Text Solution

    |

  11. Assertion: All the events of sexual reproduction prior to the fusion o...

    Text Solution

    |

  12. Assertion: In several fungi and plants, the term heterothallic and dio...

    Text Solution

    |

  13. Assertion: Gametes are always haploid cells. Reason: The parent plan...

    Text Solution

    |

  14. Assertion: Several organisms belonging to monera,fungi,algae and bryop...

    Text Solution

    |

  15. Assertion: In haploid organism, specialised cells called meiocytes (ga...

    Text Solution

    |

  16. Assertion: During gamete transport through water (inalgae, bryophytes ...

    Text Solution

    |

  17. Assertion: Syngamy occurs in the external medium, i.e. the outside of ...

    Text Solution

    |

  18. Assertion: During embryogenesis, cell division increase the number of ...

    Text Solution

    |

  19. Assertion: The chances of survival of young ones is greater in vivipar...

    Text Solution

    |