Home
Class 12
BIOLOGY
Assertion : Evolution of man is the exam...

Assertion : Evolution of man is the example of progresstive evolution.
Reason : Tapeworm is developed due to retrogressive evolution.

A

If both the assertion and the reason are true and the reason is a correct explanation of the assertion

B

If both the assertion and reason are ture but the reason is not a correct explanation of the assertion

C

If the assertion is true but the reason is false

D

If both the assertion and reason are false

Text Solution

Verified by Experts

The correct Answer is:
B

Progressive evolution is the formation of more complex specialized organisms from simple and less elaborate forms. Examples: evolution of amphibians from fish like ancestors and evolution of birds and mammals from retpile-like ancetors. Retrogressive evolution is the formation of simple and less elaborate forms from more complex and specialized ones. Example : evolution of many parasitic organisms like tape worm which does not have digestive system. it absorbs food through body surface.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • COMMON HUMAN DISEASES

    ERRORLESS |Exercise Common Human Diseases|182 Videos
  • HEALTH AND DISEASE

    ERRORLESS |Exercise Health And Disease|122 Videos

Similar Questions

Explore conceptually related problems

An example of divergent evolution is

Origin And Evolution Of Man

Knowledge Check

  • Evolution is

    A
    Development of DNA from nucleotides
    B
    Development of organisms through time
    C
    Development of a cell from chemicals
    D
    Cloning.
  • Evolution is

    A
    progressive development of a race
    B
    history and development of race along with variations
    C
    hisory of race
    D
    development of race
  • Evolution is :

    A
    Determinism
    B
    Chance
    C
    Both
    D
    None
  • Similar Questions

    Explore conceptually related problems

    ________ organs are examples of divergent evolution.

    Example of convergent evolution is

    Age of evolution of man is measured by

    The evolution of man has started during

    Evolution of man is believed to have taken place in