Home
Class 12
BIOLOGY
Assertion: Mosses are more adavanced gro...

Assertion: Mosses are more adavanced group of Bryophytes.
Reason: Gametophytes of mosses have rhizoids stem l ike and leaf like structure.

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:
A
Promotional Banner

Topper's Solved these Questions

  • DIVERSITY IN THE LIVING WORLD

    MOTION|Exercise Exercise - 3 AIPMT & NEET Previous Year Questions|131 Videos
  • DIGESTION AND ABSORPTION

    MOTION|Exercise EXERCISE -4 AIIMS | Assertion & Reason Questions|23 Videos
  • ECOLOGY

    MOTION|Exercise EXERCISE -4|56 Videos

Similar Questions

Explore conceptually related problems

Assertion: Modern taxonomic studies provide more accurate grouping of various organisms. Reason: Modern taxonomic studies are based on external and internal structures along with the structure of cell, development process and ecological informations.

Assertion : Unsaturated fats are more reactive as compared with the saturated fats. Reason : Unsaturated fats have only single bonds in their structure.

Assertion : The leaves in gymnosperms are well adapted to withstand extremes of temperature, humidity and wind Reason : Unlike bryophytes and pteridophytes, in gymnosperms the male and female gametophytes do not have an independent free living existence.

Assertion: Bryophytes are best packing material for trans shipment of living materials. Reason: Bryophytes like Sphagnum have high shock absorption ability and hygroscopic nature.

Read the passage given below and answer the question: In the last 10 years much has been learned about the molecular structure of elemental sulfur. It is now known that many different types of rings are sufficiently metastable to exist at room temperature for several days. It is known that at high temperature, the equilibrium composition allows for a variety of rings and chains to exist in comparable concentration, and it is known that at the boiling point and above, the vapor as well as the liquid contains small species with three, four, and five atoms. The sulfur atom has the same number of valence electrons as oxygen. Thus, sulfur atoms S_2 and S_3 have physical and chemical properties analogous to those of oxygen and ozone. S_2 has a ground state of 38 sigma 3s^2 sigma "*"3s^2 sigma 3pz^2 pi 3px^2=pi3py^2 pi"*"3px^1=pi"*"3py^1.S3 , thiozone has a well- known uv spectrum, and has a bent structure, analogous to its isovalent molecules O_3, SO_2 , and S_2O . The chemistry of the two elements, sulphur and oxygen, differs because sulfur has a pronounced tendency for catenation. The most frequently quoted explanation is based on the electron structure of the atom. Sulfur has low-lying unoccupied 3d orbitals, and it is widely believed that the 4s and 3d orbitals of sulfur participate in bonding in a manner similar to the participation of 2s and 2p orbitals in carbon. (source: Meyer, B. (1976). Elemental sulfur. Chemical Reviews, 76(3), 367-388. doi:10. 1021//cr603010003 ) In the following question, a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the choices on the basis of the above passage. Assertion: Thiozone has bent structure like ozone. Reason: Ozone has a lone pair which makes the molecule bent.

Why are the stem-like and leaf-like structures of a moss plant not called stem and leaves ?

Assertion Each taxonomic group can have two or more names. Reason Name should be short, precise and easy to pronounce.

MOTION-DIVERSITY IN THE LIVING WORLD-Exercise - 4 AIIMS | Assertion & Reason Questions
  1. Assertion: Phylogenetic classification system provides more accurate a...

    Text Solution

    |

  2. Assertion: In numerical taxonomy each character is given equal importa...

    Text Solution

    |

  3. Assertion: Algae are thalloid organisms of kingdom plantae. Reason:-...

    Text Solution

    |

  4. Assertion: Sexual reproduction of Spirogyra is isogamous type. Reaso...

    Text Solution

    |

  5. Assertion: Alage can bridge the gap between demand and supply of prote...

    Text Solution

    |

  6. Assertion:- Bryophytes are not a successful land plants. Reason:- I...

    Text Solution

    |

  7. Assertion: Bryophytes are best packing material for trans shipment of ...

    Text Solution

    |

  8. Assertion : Bryophytes are of great ecological importance. Reason: B...

    Text Solution

    |

  9. Assertion: Bryophytes play great role in providing ecological services...

    Text Solution

    |

  10. Assertion: Mosses are more adavanced group of Bryophytes. Reason: Ga...

    Text Solution

    |

  11. Assertion: Pteriodophytes are not completely successful land plants. ...

    Text Solution

    |

  12. Assertion:- Gametophyte of homosporous pteridophyte does not depend on...

    Text Solution

    |

  13. Assertion:- In gymnosperms seeds are naked. Reason:- In gymnosperms...

    Text Solution

    |

  14. Assertion: In gymnosperms the seeds that develop post fertilisation ar...

    Text Solution

    |

  15. Assertion: Gymnosperms are first completely successul land plants. R...

    Text Solution

    |

  16. Assertion: In gymnosperms development of male gametophyte (pollen grai...

    Text Solution

    |

  17. Assertion:- In pteridophyte well distinct alternation of generation is...

    Text Solution

    |

  18. Assertion: Chara is a green alga close to Bryophyta: Reason: Sex org...

    Text Solution

    |

  19. Assertion: Bryophytes are termed as amphibains of plant kingdom. Rea...

    Text Solution

    |

  20. Assertion: Green algae best exhibit the origin and evolution of sexual...

    Text Solution

    |