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micro-organisms that lack internal cell membranes. The most common and ancient organisms on earth. Most bacteria are less than 1(m in length. Hundreds of thousands of bacteria can fit into a space the size of the full stop at the end of thi...
is characterised by a number of cellular processes such as growth, division, cell differentiation and movement all controlled by cell–cell signalling. To study these processes in detail it is advantageous to be able to visualise them with ...
The term "yeast" refers more to a life-style than to a phylogenetic classification. Yeast refers to the unicellular phase of the life cycles of many different fungi, but it is used more commonly as a generic term for fungi that have only a...
a sexually transmitted infection, which is cause by bacteria known as the Chlaymadia trachomatis. Although, it is sometimes referred to as an infection which caused by coming in contact with any species of Chlamydiac bacterial family. This...
prokaryotic organisms. Eukaryotic Cells Eukaryotic cells are more complex, evolving from a prokaryote-like predecessor. Most of the living things that we are typically familiar with are composed of eukaryotic cells; animals, plants, fungi a...
only ones characterized by prokaryotic organization. Too tiny to see with the naked eye, a bacterial cell is usually one of three basic shapes; bacillus, a rod shaped cell; coccus, a spherical cell; or spirillum, a spiral cell. A few kinds ...
large intestine that is caused by the parasite Entamoeba histolytica. It may lead to mild or chronic diarrhea to even dysentery. It majorly affects the people living in tropical areas. They are vulnerable to this infection due to their poor...