Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents

Your guest activity stays on this device

Sign in to save progress →
Sign in

Evolution question

2012 · Q77
Guest · filters and generic practice availableBrowsing as a guest · PYQ filters and generic practice are available. Sign in only for personalised features and saved progress.
  1. PYQ Library
  2. /NEET
  3. /Biology
  4. /Evolution
  5. /2012 · Q77

Evolution question

2012 · Q77

NEETBiologyEvolutionMCQ+4 / −1
Which one of the following options gives one correct example each of convergent evolution and divergent evolution ?
  1. A
    Convergent evolution →\to→ Thorns of Bougainvillia and tendrils of cucurbita & Divergent evolution →\to→ Eyes of Octopus and mammals
  2. B
    Convergent evolution →\to→ Eyes of octopus & Divergent evolution →\to→ Bones of forelimpbs of mammals and vertebrates
  3. C
    Convergent evolution →\to→ Thorns of Bougainvillia and ten drils of cucurbita & Divergent evolution →\to→ Wings of butterflies and birds
  4. D
    Convergent evolution →\to→ Bones of forelimbs of vertebrates & Divergent evolution →\to→ Wings of butterfly and birds
View written solutionFree

Correct answer: B

Development of similar adaptive functional structures in unrelated groups of organisms is called convergent evolution. It shows analogy. Examples are wings of butterfly and birds, eye of the octopus and the mammals, flippers of penguins & dolphins, etc. On the other hand, divergent evolution involves development of different functional structures along different directions due to adaptations to different needs from a common ancestral form. For example, forelimbs of vertebrates (whales, bat, cheetah, human). Though these perform different functions, they have similar anatomical structures.

PreviousNext

More from Evolution

  • The extinct human who lived 1,00,000 to 40,000 years ago, in Europe, Asia and parts of Africa, with short stature, heavy eye brows, retreating fore heads, large jaws with heavy teeth, stocky bodies, a lumbering gait and stooped posture was…2012 · MCQ
  • What was the most significant trend in the evolution of modern man (Homo sapiens) from his ancestors ?2012 · MCQ
  • What was the most significant trend in the evolution of modern man (Homo sapiens) from his ancestors ?2011 · MCQ
  • The most apparent changes during the evolutionary history of Homo sapiens is traced in2010 · MCQ
  • Given below are four statements (A-D) each with one or two blanks. Select the option which correctly fills up the blanks in two statements – Statements : (A) Wings of butterfly and birds look alike and are the results of (i) , evolution…2010 · MCQ
  • Darwin's finches are a good example of –2010 · MCQ
  • Peripatus is a connecting link between :2009 · MCQ
  • In the case of peppered moth (Biston betularia) the black-coloured from became dominant over the light-coloured form in England during industrial revolution. This is an example of -2009 · MCQ