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

About 98 percent of the mass of every living organism is composed of just six elements including carbon, hydrogen, nitrogen, oxygen and

  • phosphorus and sulphur

  • sulphur and magnesium

  • magnesium and sodium

  • calcium and phosphorus


A.

phosphorus and sulphur

About 98% of the mass of every living organisms including bacterium and human beings is composed of just six elements i.e., Carbon (C), Hydrogen (H), Nitrogen (N), Oxygen (O), Phosphorus (P) and Sulphur (S).

About 98% of the mass of every living organisms including bacterium and human beings is composed of just six elements i.e., Carbon (C), Hydrogen (H), Nitrogen (N), Oxygen (O), Phosphorus (P) and Sulphur (S).

945 Views

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
708 Views

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

Founder Effect.
733 Views

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.
752 Views

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

Abiogenesis
771 Views

When did life appear on earth ?

 500 million years ago.
996 Views