Home
Class 10
BIOLOGY
All human races like Africans, Asians, E...

All human races like Africans, Asians, Europeans, Americans and others look so different from each other still they belong to the same species. Give three points to justify the statement.

Text Solution

Verified by Experts

(i) Freely interbreeding, producing fertile offspring.
(ii) Same number of chromosomes-23 pairs.
(iii) Common body design, anatomy and physiology.
Promotional Banner

Topper's Solved these Questions

  • HEREDITY AND EVOLUTION

    OSWAAL PUBLICATION|Exercise TOPIC - 2 (ORIGIN OF LIFE AND EVOLUTION)(LONG ANSWER TYPE QUESTIONS)|6 Videos

  • HEREDITY AND EVOLUTION

    OSWAAL PUBLICATION|Exercise NCERT CORNER (INTEXT QUESTIONS)|17 Videos

  • HEREDITY AND EVOLUTION

    OSWAAL PUBLICATION|Exercise TOPIC - 2 (ORIGIN OF LIFE AND EVOLUTION)(SHORT ANSWER TYPE QUESTIONS - I)|11 Videos

  • CONTROL AND CO-ORDINATION

    OSWAAL PUBLICATION|Exercise NCERT CORNER (Textbook Exercises)|12 Videos

  • HOW DO ORGANISMS REPRODUCE?

    OSWAAL PUBLICATION|Exercise NCERT CORNER (TEXTBOOK EXERCISES)|11 Videos

Similar Questions

Explore conceptually related problems

Why are human beings who look so different from each other in terms of size, colour and looks said to belong to the same species?

Why are human beings who look so different from each other in terms in size, colour and looks said to belong to the same species?

In a potato race, a bucket is placed at the starting point, which is 5m from the first potato, and the other potatoes are placed 3m apart in a straight line. There are ten potatoes in the line (fig.). A competitor starts from the bucket, picks up the nearest potato, runs back with it, drops it in the bucket, runs back to pick up the nest potato, runs to the bucket to drop it in, and she continues in the same way until all the potatoes are in the bucket. What is the total distance the competitor has to run ? [Hint : To pick up the first potato and the second potato, the total distance (in metres) run by a competitor is 2 xx 5 + 2 xx (5 + 3) ]

OSWAAL PUBLICATION-HEREDITY AND EVOLUTION-TOPIC - 2 (ORIGIN OF LIFE AND EVOLUTION)(SHORT ANSWER TYPE QUESTIONS - II)
  1. (a) Identify the fossils A and B? (b) What type of fossils are these...

    Text Solution

    |

  2. What is speciation? Explain in brief the role of natural selection and...

    Text Solution

    |

  3. Explain the terms (i) Speciation (ii) Natural selection

    Text Solution

    |

  4. Define the following with one example for each : (i) Genetic Drift. ...

    Text Solution

    |

  5. Name three organisms which are fossilized.

    Text Solution

    |

  6. (i) Which of the following fossils is invertebrate and which one is ve...

    Text Solution

    |

  7. Give two uses of fossils. How does the study of fossils provide eviden...

    Text Solution

    |

  8. When organisms die, their bodies will decompose and be lost. Then how ...

    Text Solution

    |

  9. How were farmers able to obtain present day cabbage, cauliflower and b...

    Text Solution

    |

  10. "Evolution should not be equated with progress". Why?

    Text Solution

    |

  11. List three factors that provide evidences in favour of evolution in or...

    Text Solution

    |

  12. Homologous organs are different form analogous organs. (i) Mention t...

    Text Solution

    |

  13. There are two different types of organs, homologous and analogous. Dif...

    Text Solution

    |

  14. All human races like Africans, Asians, Europeans, Americans and others...

    Text Solution

    |

  15. List three factors that provide evidences in favour of evolution in or...

    Text Solution

    |

  16. (i) Planaria, insects, octopus and vertebrates all have eyes. Can we g...

    Text Solution

    |

  17. "It is a matter of chance whether a couple will have a male or a femal...

    Text Solution

    |

  18. (a) Cite the evidence on the basis of which it is concluded that birds...

    Text Solution

    |

  19. The modern human beings have originated in Africa. (i) Which evidenc...

    Text Solution

    |

  20. (i) A husband has 46 chromosomes, his wife has 46 chromosomes. Then wh...

    Text Solution

    |