Home
Class 12
BIOLOGY
the origin of seeds in the land plants w...

the origin of seeds in the land plants was achieved about 345 million years ago, in lineages recognised as anecestral to all more advanced vascular plants in

A

Rhynia

B

Tracheophyte ancestor

C

Seed ferns

D

Conifers

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • EVOLUTION

    CENGAGE BIOLOGY ENGLISH|Exercise Exercise Assertion-Reasoning Question.|25 Videos

  • EVOLUTION

    CENGAGE BIOLOGY ENGLISH|Exercise Archives|38 Videos

  • ENVIRONMENTAL ISSUES

    CENGAGE BIOLOGY ENGLISH|Exercise ARCHIVES|45 Videos

  • HUMAN HEALTH AND DISEASE

    CENGAGE BIOLOGY ENGLISH|Exercise ARCHIVES|46 Videos

Similar Questions

Explore conceptually related problems

Origin of seed in land plants occured about

Read the following statements regarding evolution (A-D)- A. Whales, bats, cheetah, and humans (all mammals) share similarities in the pattern of bones of forelimbs. B. The diversity of life forms on earth has been changing over millions of years. C. About 65 million years ago the dinosaurs suddenly disappeared from the earth. D. A single-step large mutation is called speciation and explained by Herbert Spencer. How many statements from the above is/are correct ?

Which of the following statements regarding the estimates of number of species found on earth is not correct ? (a) Total number of species present on earth are considered to be about 7 million as estimated by Robert May. (b) Plants constitute more than 70% of all the species recorded, whereas animals constitute less than 22% of the total number of species. (c) Insects constitute more than 70% of all the animal species. (d) None of these

Identify the statements as true(T) or false(F). A. Xylem fibres are the components of xylem in all categories of vascular plants. B. Advanced angiosperm families like Winteraceae & Trochodendraceae do not have vessels. C. Sieve tubes & companion cells are ontogenetically related & are called sister cells. D. The cytoplasm of a mature sieve tube occurs in the form of a thin-living layer along the inner side of cell walls.

Identify true or false statements (i) Conventional plant breding is in practice from 9,000-11,000 years ago. (ii) Recombinant progeny is self -pollnated for saveral generations til they reach a state of heterozgosity (iii) During the period 1960 to 2000 wheat production increased from 35 million tonnes to 89.5 million tonnes.

CENGAGE BIOLOGY ENGLISH-EVOLUTION-Archives
  1. the origin of seeds in the land plants was achieved about 345 million ...

    Text Solution

    |

  2. One of the important consequences of geographical isolation is

    Text Solution

    |

  3. Adaptive radiation refers to

    Text Solution

    |

  4. Industrial meanism as observed in peppered moth proves that

    Text Solution

    |

  5. What is common to whale seal and shark

    Text Solution

    |

  6. Which one of the following is a matching pair of a body feature and th...

    Text Solution

    |

  7. What is common between Parrot, Platy-pus and Kangaroo?

    Text Solution

    |

  8. The finches of Galapagos islands provide an evidence in favour of

    Text Solution

    |

  9. The concept of chemical evolution is based on

    Text Solution

    |

  10. Which one of the following statement is correct ?

    Text Solution

    |

  11. A polygenic trait is controlled by 3 genes A, B and C . In a cross ...

    Text Solution

    |

  12. Which one of the following is incorrect about the characteristics of p...

    Text Solution

    |

  13. Which one of the following pair of items correclty belongs to the cate...

    Text Solution

    |

  14. Thorn of Bougainvillea and tendril of Cucurbita are examples of :

    Text Solution

    |

  15. Which one of the following scientist's name is correctly matched with ...

    Text Solution

    |

  16. Which one of the following in birds indicates their reptilian ancesty?

    Text Solution

    |

  17. Peripatus is a connected link between

    Text Solution

    |

  18. What was the most significant trend in the evolution of modern man (Ho...

    Text Solution

    |

  19. What was the most significant trend in the evolution of modern man (Ho...

    Text Solution

    |

  20. Which one of the following options gives one correct example each of c...

    Text Solution

    |

  21. The extinct human who lived 1,00,000 to 40,000 years ago, in Europe, A...

    Text Solution

    |