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17 Jan 2012

Defination of atoms.

The atom is a basic unit of matter that consists of a dense central nucleus surrounded by a cloud of negatively charged electrons. The atom... Read more »

7 Jan 2012

What Are Bacteria?

Bacteria are a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria have a wide range of shapes, ran... Read more »

22 Oct 2011

Plant Cell And Animal Cell.

Animal Cell An animal cell is a form of eukaryotic cell that makes up many tissues in animals. The animal cell is distinct from other euka... Read more »