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Biology is the scientific study of life. [1] [2] [3] It is a natural science with a broad scope but has several unifying themes that tie it together as a single, coherent field. [1] [2] [3] For instance, all organisms are made up of cells that process hereditary information encoded in genes , which can be transmitted to future generations.
The number of cells in plants and animals varies from species to species; it has been estimated that the human body contains around 37 trillion (3.72×10 13) cells, [1] and more recent studies put this number at around 30 trillion (~36 trillion cells in the male, ~28 trillion in the female). [2]
The following are images from various biology-related articles on Wikipedia. Image 1 Cabinets of curiosities , such as that of Ole Worm , were centers of biological knowledge in the early modern period, bringing organisms from across the world together in one place.
Following the establishment of the Central Dogma and the cracking of the genetic code, biology was largely split between organismal biology—the fields that deal with whole organisms and groups of organisms—and the fields related to cellular and molecular biology.
Cell biology (also cellular biology or cytology) is a branch of biology that studies the structure, function, and behavior of cells. [1] [2] All living organisms are made of cells. A cell is the basic unit of life that is responsible for the living and functioning of organisms. [3]
Biology is the science that studies life, living things, and the evolution of life. Living things include animals, plants, fungi (such as mushrooms ), and microorganisms such as bacteria and archaea . The term 'biology' is relatively modern. It was introduced in 1799 by a physician, Thomas Beddoes.
An interdisciplinary branch of biology and engineering combining various disciplines from within these domains, including biotechnology, evolutionary biology, molecular biology, systems biology, biophysics, computer engineering, and genetic engineering.
Molecular biology – study of biology and biological functions at the molecular level, with some cross over from biochemistry. Structural biology – a branch of molecular biology, biochemistry, and biophysics concerned with the molecular structure of biological macromolecules.
In biology, taxonomy (from Ancient Greek τάξις ( taxis) 'arrangement', and -νομία ( -nomia) ' method ') is the scientific study of naming, defining ( circumscribing) and classifying groups of biological organisms based on shared characteristics. Organisms are grouped into taxa (singular: taxon) and these groups are given a taxonomic ...
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