Questions

Biogeochemical cycles are crucial to ecosystem function because ::

1. Chemical elements are available in only limited amounts and must be recycled.

2. Nutrients and other life-sustaining molecules are in limited supply and must be continually recycled.

Cellulose is closely related to sugar and rated as a carbohydrate, which means that it is a compound of carbon, hydrogen and oxygen. The woody trunk of a tree is no more than dead cell walls.

Trunk of a tree refers to the main wooden axis of a tree that supports the branches and is supported by and directly attached to the roots. The molecule that makes it sturdy is cellulose.

Atoms are composed of Electrons, protons and Neutrons. Protons and Neutrons together called as Nuclei.

The first Indian woman President of Indian National Congress was Sarojini Naidu in the year 1925.

First woman to become the president of INC - Annie Besant 1917.

The Indian Institute of Sciences (IISc)- Bengaluru has topped the list of best universities of country's official higher education rankings, recently announced by the HRD Ministry.

In the early 1950s two scientists, Rosalind Franklin and Maurice Wilkins, studied DNA using x-rays. Franklin produced an x-ray photograph that allowed two other researchers, James Watson and Francis Crick to work out the 3D structure of DNA. The structure of DNA was found to be a double helix.