Home
Class 12
BIOLOGY
According to Lamarckism, long necked gir...

According to Lamarckism, long necked giraffes evolved because

A

nature selected only long necked ones

B

humans preferred only long necked ones

C

short necks suddenly changed into long necks

D

of stretching of necks over many generations by short necked ones.

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • EVOLUTION

    AAKASH SERIES|Exercise EXERCISE - I (HARDY WEINBERG)|3 Videos

  • EVOLUTION

    AAKASH SERIES|Exercise EXERCISE - I (EVOLUTIONARY FORCES)|6 Videos

  • EVOLUTION

    AAKASH SERIES|Exercise EXERCISE - I (ADAPTIVE RADIATION )|18 Videos

  • DIGESTION AND ABSORPTION

    AAKASH SERIES|Exercise Exercise - III (Previous AIPMT/NEET Questions)|24 Videos

  • EXCRETORY PRODUCTS AND THEIR ELIMINATION

    AAKASH SERIES|Exercise EXERCISE - III (PREVIOUS AIPMT/NEET QUESTIONS)|20 Videos

Similar Questions

Explore conceptually related problems

Assertion :- According to Lamarck, evolution of life forms had occured but driven by use and disuse of organs. Use and disuse of organ leads to change at genetic level.

Long neck of Girraffe or camel due to :-

Viviparity is considered to be more evolved because

Viviparity is considered to be more evolved because

Viviparity is considered to be more evolved because

[A]: According to the theory of Lamarck use and disuse caused the increase and decrease in size of organs and environment caused the changes which can be transferred to next generation. [R]: Modern synthetic theory is also known as Neo-Lamarckism.

When a piece of sodium metal is dropped in water, hydrogen gas evolved because

According to collision theory, rate of the reaction increases , because - (a)Number of collision decreases (b)Number of molecules crossing energy barrier increases (c)Kinetic energy of molecules increases (d)Value of rate constant increases

Which of the following are incorrect statements? (a)Crossing over during fusion of gametes result in formation of new combination of characters. (b)Natural selection can lead to change in allelic frequencies. (c) According to Lamarck, use and disuse of organs is major driving force behind evolution of life forms. (d)increase in number of heterozygotes[HbA/Hbs]over homozygotes[HbA/HbA or Hbs/Hbs] in malaria prone area is an example of directional selection.

0.50 gm of an organic compound was treated according to Kjeldahl's meghod. The ammonia evolved was absorbed in 50 ml of 0.5 MH_2SO_4 . The residual acid required 60 ml of (M)/(2)NaOH solution. Find the percentage of nitrogen in the compound.

AAKASH SERIES-EVOLUTION-EXERCISE - I (BIOLOGICAL EVOLUTION ( THEORIES OF EVOLUTION & MECHANISM OF EVOLUTION))
  1. New species arise by sudden jump according to

    Text Solution

    |

  2. There are no intermediate stages in the course of evolution according ...

    Text Solution

    |

  3. According to Darwin, if new variations are to be inherited they should...

    Text Solution

    |

  4. Hugo de Vries gave his mutation theory on organic evolution while work...

    Text Solution

    |

  5. The most likely reason for the development of resistance against pesti...

    Text Solution

    |

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

    Text Solution

    |

  7. Which of the following evidences does not favour the lamarckian concep...

    Text Solution

    |

  8. The diversity in the type of beaks of finches adapted to different fee...

    Text Solution

    |

  9. Darwinism explains all the following except

    Text Solution

    |

  10. Given below are four statements (A-D) each with one or two blanks. Sel...

    Text Solution

    |

  11. Single step large mutation leading to speciation is also called

    Text Solution

    |

  12. By the statement 'survival of the fittest', Darwin meant that

    Text Solution

    |

  13. Which of the following are the two key concepts of Darwinian theory of...

    Text Solution

    |

  14. According to Lamarckism, long necked giraffes evolved because

    Text Solution

    |

  15. Each of us is part of the ongoing evolution of the species which of th...

    Text Solution

    |

  16. Which of the following statements about natural selection are correct?...

    Text Solution

    |

  17. Replacement of the lighter-coloured variety of peppered moth (Biston b...

    Text Solution

    |

  18. Appearance of antibiotic-resistant bacteria is an example of

    Text Solution

    |

  19. Which of the following is an example for link species?

    Text Solution

    |

  20. Variations during mutations of meiotic recombinations are

    Text Solution

    |