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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 ...
Category. v. t. e. 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] Cell biology is the study of the structural ...
Cambridge O Levels, Cambridge IGCSE and/or Cambridge International Level 1 or Level 2 Certificates may be taken in the same examination session but certain combinations of subjects are not allowed as described below. Cambridge O Levels are only available for centres in administrative zones 3, 4 & 5. [2] Syllabus Code. Syllabus Title.
Tree of life (biology) The tree of life or universal tree of life is a metaphor, conceptual model, and research tool used to explore the evolution of life and describe the relationships between organisms, both living and extinct, as described in a famous passage in Charles Darwin 's On the Origin of Species (1859). [1]
Geobiology – study of the interactions between the physical Earth and the biosphere. Marine biology – study of ocean ecosystems, plants, animals, and other living beings. Microbiology – study of microscopic organisms (microorganisms) and their interactions with other living things. Bacteriology – study of bacteria.
t. e. Molecular biology / məˈlɛkjʊlər / is a branch of biology that seeks to understand the molecular basis of biological activity in and between cells, including biomolecular synthesis, modification, mechanisms, and interactions. [1][2][3] Though cells and other microscopic structures had been observed in living organisms as early as the ...
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 rank ...
Principles of Biology. Principles of Biology is a college level biology electronic textbook published by Nature Publishing in 2011. The book is not a digitally reformatted version of a paper book. [1] The book, the first in a projected series, is Nature Publishing's first foray into textbook publishing. [2][3]