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{{ભાષાંતર}}

[[ચિત્ર:Biology organism collage.png|thumb|300px|Biology deals with the study of the many varieties of living [[organism]]s. Clockwise from top left: ''[[Salmonella typhimurium]]'', ''[[Phascolarctos cinereus]]'', ''[[Athyrium filix-femina]]'', ''[[Amanita muscaria]]'', ''[[Agalychnis callidryas]]'', and ''[[Brachypelma smithi]]'']]


'''Biology''' is a [[natural science]] concerned with the study of [[life]] and [[organism|living organisms]], including their structure, function, growth, origin, evolution, distribution, and taxonomy.<ref>Based on definition from [http://www.bio.txstate.edu/~wetlands/Glossary/glossary.html Aquarena Wetlands Project glossary of terms.]</ref> Biology is a vast subject containing many subdivisions, topics, and disciplines. Among the most important topics are five unifying principles that can be said to be the fundamental axioms of modern biology:<ref name="avila_biology">{{cite book |author=Avila, Vernon L. |title=Biology: Investigating life on earth |publisher=Jones and Bartlett |location=Boston |year=1995 |pages=11–18|isbn=0-86720-942-9 |oclc= |doi= |accessdate=}}</ref>

# Living organisms consume and transform [[energy]].
# [[cell theory|Cells]] are the basic unit of life
# [[Gene]]s are the basic unit of [[heredity]]
# An organism [[homeostasis|regulates]] its internal environment to maintain a stable and constant condition
# New species and inherited traits are the product of [[evolution]]

Subdisciplines of biology are recognized on the basis of the scale at which organisms are studied and the methods used to study them: [[biochemistry]] examines the rudimentary chemistry of life; [[molecular biology]] studies the complex interactions of systems of biological molecules; [[cellular biology]] examines the basic building block of all life, the [[cell (biology)|cell]]; [[physiology]] examines the physical and chemical functions of the [[tissue (biology)|tissues]], [[Organ (anatomy)|organs]], and [[organ system]]s of an organism; and [[ecology]] examines how various organisms interact and associate with their environment.<ref>[http://community.weber.edu/sciencemuseum/pages/life_main.asp Life Science, Weber State Museum of Natural Science]</ref>

== ==
<gallery>
File:Guriezo Adino vaca toro terneras.jpg|Animalia - Bos primigenius taurus
File:Zboże.jpg|Planta - Triticum
File:Morchella esculenta 08.jpg|Fungi - Morchella esculenta
File:Fucus serratus2.jpg|Stramenopila/Chromista - Fucus serratus
File:Gemmatimonas aurantiaca.jpg|Bacteria - Gemmatimonas aurantiaca (- = 1 Micrometer)
File:Halobacteria.jpg|Archaea - Halobacteria
File:Gamma phage.png|Virus - Gamma phage
</gallery>⏎
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== Notes and references ==
{{Reflist|2}}
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