Zigya Logo

Chapter Chosen

Evolution

Book Chosen

Biology

Subject Chosen

Biology

Book Store

Download books and chapters from book store.
Currently only available for.
CBSE Gujarat Board Haryana Board

Previous Year Papers

Download the PDF Question Papers Free for off line practice and view the Solutions online.
Currently only available for.
Class 10 Class 12

Darwin's finches are a good example of 

  • industrial melanism

  • connecting link

  • adaptive radiation

  • convergent evolution


C.

adaptive radiation

Darwin's finches are a good example of adaptive radiation. It is an evolutionary process starting from a point in the geographical area, giving rise to new species depending upon habitat. Main Darwin finch was in South America, some flew to Galapagos islands and some variations got selected and gave rise to new species.

Darwin's finches are a good example of adaptive radiation. It is an evolutionary process starting from a point in the geographical area, giving rise to new species depending upon habitat. Main Darwin finch was in South America, some flew to Galapagos islands and some variations got selected and gave rise to new species.


What is the phenomenon called when the original drifted population becomes founders?

Founder Effect.

Give another name for origin of life from non living matter.

Abiogenesis

When did life appear on earth ?

 500 million years ago.

Arrange the following substances in a proper sequence with regard to the formation of chemical constituents at the time of origin of life :

Sugar, methane, nucleic acid and amino acid.


Methane—sugar—amino acid—nucleic acid.

What conditions were created by Miller in his experiment?

Miller  created electric discharge in a closed flask that contained CH4, NH3, H2 and water vapour at high temperature like 800°C