Monday, August 23, 2010

All About Viruses


A virus is defined as any of a various number of submicroscopic parasites that can infect any animal, plant or bacteria and often lead to very serious or even deadly diseases. A virus consists of a core of RNA or DNA, generally surrounded by a protein, lipid or glycoprotein coat, or some combination of the three. No virus can replicate without the help of a host cell, and though they can be spread, viruses lack the ability of self-reproduction and are not always considered to be living organisms in the regular sense.

Some of the most common or best known viruses include the human immunodeficiency virus (HIV), which is the virus that causes AIDS, the herpes simplex virus, which causes cold sores, smallpox, multiple sclerosis, and the human papilloma virus, now believed to be a leading cause of cervical cancer in adult women. The common human cold is also caused by a virus.

Since a great deal of mystery still surrounds the origins of most modern viruses, ways to cure these viruses and the diseases they cause are still in the very early stages of development.

Find out more about viruses today. Begin by browsing the information below including the latest on common types of human viruses, deadly human viruses, new human viruses, news of virus vaccinations, as well as number of other facts and details about viruses and the human body.

Thursday, August 12, 2010

Taxonomic Rank

1. Kingdom
In biology, Kingdom (Latin : regnum ; pl : regna ) is a taxonomic rank which is either the highest rank or in the more recent three-domain system. the rank below domain.
2. Phylum ( For Animal )
In biology, a phylum ( plural : phyla ) is a taxonomic rank below kingdom and above class. "Phylum" is equivalent to the botanical term division. Phylum is one of the major biological divisions called taxa.
3. Classis
In biology, a classis is a taxonomic rank below phylum and above ordo.
4. Ordo
Ordo, in Indonesia is called "Bangsa". ( Latin : Ordo ; plural : ordines ). Ordo is a taxonomic rank between classis and familia.
5. Familia
In science classification, familia is a taxonomic rank between ordo and genus. Familia in Indonesia mean suku, famili or keluarga. the term is first introduced by Pierre Magnol, in his book "Prodromus Historiae GeneralisPlantarum, in Quo Familiae" on 1689. Carolus Linnaeus used familia term in his book "Philosophia Botanica" on 1751 to indicate the most excellent plant group.
6. Genus
In biology, Genus ( Plural : Genera ) is a taxonomic rank between Familia and species. Genus in Indonesia mean Marga. The members of Genus have a similarity in morphology and close relatives.
7. Species
In biology, species is a taxonomic rank which is either the lowest rank. Species is used to indicate a group or some groups which have a similarity and can be fertilize aech other, but it just in the same group.