Advertisement

Which one of the following are analogous structures?

  • Wings of bat and wings of pigeon

  • Gills of prawn and lungs of man

  • Thorns of Bougainvillea and tendrils of Cucurbita

  • Thorns of Bougainvillea and tendrils of Cucurbita


B.

Gills of prawn and lungs of man

Analogous organs are the structures of different species having similar or corresponding functions but different structure. They do not belong to the same evolutionary origins.

Wings of bat are skin folds stretched mainly between elongated fingers but the wing of birds are a feather covering all along the arm. They look similar because they have a common use for flying but their origin is not common.

730 Views

Advertisement

Which of the following had the smallest brain capacity?

  • Homo erectus

  • Homo sapiens

  • Homo neanderthalensis

  • Homo neanderthalensis


A population will not exist in Handy - Weinberg equilibrium if

  • individuals mate selectively

  • there are no mutations

  • there is no migration

  • there is no migration


What was the most significant trend in the evolution of modern man (Homo sapiens) from his ancestors? 

  • shortening of jaws

  • Binocular vision

  • Increasing brain capacity 

  • Increasing brain capacity 


Darwin's finches are a good example of 

  • industrial melanism

  • connecting link

  • adaptive radiation

  • adaptive radiation


First 4 5 6 Last
Advertisement