Home
Class 12
BIOLOGY
Define evolution....

Define evolution.

Text Solution

Verified by Experts

Origin of a genetically distinct type of organism from the pre-existing life froms through gradual modification, is known as evolution.
Promotional Banner

Topper's Solved these Questions

  • EVOLUTION

    SANTRA PUBLICATION|Exercise Long answer type Questions|9 Videos
  • EVOLUTION

    SANTRA PUBLICATION|Exercise Very short answer type Questions|30 Videos
  • ENVIRONMENTAL ISSUES

    SANTRA PUBLICATION|Exercise Joint Entrance Mock Test|90 Videos
  • HEALTH AND DISEASE

    SANTRA PUBLICATION|Exercise Long answer type Question|9 Videos

Similar Questions

Explore conceptually related problems

Seed habit is an important step in evolution. It is due to

Write the role of fossil in evolution.

Mutation is the main source of evolution.

The earliest ancestor in the evolution of horse is "_______".

Analogous structures are a result of 1. Divergent evolution 2. Convergent evolution 3. Artificial selection 4. Genetic drift

Choose the correct sequence in the evolution of horse-

Choose the correct sequence in the evolution of horse-

_____ is the first evolutionary stage of human evolution.

Which of the following sequence is correct in the evolution of horse

What is mutation? Write the role of Recombination in evolution.

SANTRA PUBLICATION-EVOLUTION-Short Answer Type Question
  1. Define evolution.

    Text Solution

    |

  2. What was the ancient belief about the earth and the living world?

    Text Solution

    |

  3. What is proposed in the theory of special creation?

    Text Solution

    |

  4. Who proposed cosmozoic theory and what does it say about origin of lif...

    Text Solution

    |

  5. What is meant by Chemosynthetic theory of origin of life ?

    Text Solution

    |

  6. Briefly describe the coacervate model.

    Text Solution

    |

  7. Name the periods in the paleozoic era (starting from recent) ?

    Text Solution

    |

  8. Under how many eons, the time period of earth up to the recent have be...

    Text Solution

    |

  9. What kind of flora and fauna was observed in the Jurassic period ?

    Text Solution

    |

  10. Name the periods which are also known as : (a) Carboniferous (b) Devon...

    Text Solution

    |

  11. What aree the important sources of evidence in favour of biological ev...

    Text Solution

    |

  12. Mention two features of Archaeopteryx ?

    Text Solution

    |

  13. What are trace fossils ?

    Text Solution

    |

  14. What are pseudofossils ?

    Text Solution

    |

  15. What are analogous organs ?

    Text Solution

    |

  16. Give at least two evidences that support the recapitulation theory.

    Text Solution

    |

  17. What does the Modern Synthetic theory proposes as the cause of evoluti...

    Text Solution

    |

  18. Write an account to describe the atmosphere that prevailed on the eart...

    Text Solution

    |

  19. Mention the possible steps that has led to the origin of life.

    Text Solution

    |

  20. Write the reptilian and avian features of Archaeopteryx.

    Text Solution

    |