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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 at least one cell that processes hereditary information encoded in genes , which can be transmitted ...
The history of biology traces the study of the living world from ancient to modern times. Although the concept of biology as a single coherent field arose in the 19th century, the biological sciences emerged from traditions of medicine and natural history reaching back to Ayurveda, ancient Egyptian medicine and the works of Aristotle, Theophrastus and Galen in the ancient Greco-Roman world.
The history of life on Earth traces the processes by which living and extinct organisms evolved, from the earliest emergence of life to the present day. Earth formed about 4.5 billion years ago (abbreviated as Ga, for gigaannum) and evidence suggests that life emerged prior to 3.7 Ga. [1] [2] [3] The similarities among all known present-day species indicate that they have diverged through the ...
1933 – Tadeus Reichstein artificially synthesized vitamin C; first vitamin synthesis. 1935 – Rudolf Schoenheimer used deuterium as a tracer to examine the fat storage system of rats. 1935 – Wendell Stanley crystallized the tobacco mosaic virus. 1935 – Konrad Lorenz described the imprinting behavior of young birds.
Outline of biochemistry. Atoms and molecules. matter – element – atom – proton – neutron – electron – Bohr model – isotope – chemical bond – ionic bond – ions – covalent bond – hydrogen bond – molecule. Water: properties of water – solvent – cohesion – adhesion – surface tension – pH.
History of molecular biology. The history of molecular biology begins in the 1930s with the convergence of various, previously distinct biological and physical disciplines: biochemistry, genetics, microbiology, virology and physics. With the hope of understanding life at its most fundamental level, numerous physicists and chemists also took an ...
Biology is the scientific study of life. It is a natural science with a broad scope but has several unifying themes that tie it together as a single, coherent field. For instance, all organisms are made up of cells that process hereditary information encoded in genes, which can be transmitted to future generations.
The Scientific Revolution was a series of events that marked the emergence of modern science during the early modern period, when developments in mathematics, physics, astronomy, biology (including human anatomy) and chemistry transformed the views of society about nature. [1][2][3][4][5][6] The Scientific Revolution took place in Europe in the ...