Great Chain of Being
The "Great Chain of Being" is the term used in medieval culture to describe the hierarchical order of the natural world.
Physical Anthropology
Physical anthropology, branch of anthropology concerned with the origin, evolution, and diversity of people. Physical anthropologists work broadly on three major sets of problems: human and nonhuman primate evolution, human variation and its significance (see also race), and the biological bases of human behaviour.
Modern Synthetic Theory of Evolution
The modern synthetic theory of evolution is founded on the idea of genes, which are hereditary in nature and aid in passing down traits from one generation to the next. It combines the ideas of Mendelian genetics with Darwinian evolution.
Theory of Use and Disuse
The ‘theory of use and disuse’ refers to the concept that all organisms physically adjust to their environment in ways that these new physical characteristics could be inherited by their offspring.
Theory of Continuity of Germplasm
August Weismann an evolutionary biologist gave the theory of continuity of germplasm in 1892 wherein he proposed in his book Die Kontinuitdt des Keimplasmas
Microevolution
Microevolution is the study of small-scale changes in the genetic makeup of populations over time.
Oparin-Haldane Hypothesis
The Oparin-Haldane Hypothesis, also known as the primordial soup theory, proposes that life on Earth originated from simple organic compounds that formed in the atmosphere and oceans of the early Earth.
Theories of Evolution
Theories of evolution attempt to explain how species have changed over time and how new species arise.
Theory of Epigenesis
The Theory of Epigenesis is a scientific concept that seeks to explain the origin and development of organisms through the gradual differentiation of cells.
Macroevolution
Macroevolution refers to the long-term patterns and processes of evolution that occur over geological time scales, typically involving the formation of new species and the diversification of entire groups of organisms.
Theory of Isolation
The theory of isolation is a post Darwinian theory put forth by Moritz Wagner. Wagner believed that Darwin was not able to explain the concept of speciation completely.
Theory of Spontaneous Generation
The theory of spontaneous generation is the idea that living organisms originated from seemingly non-living beings, or even totally inorganic matter.
Molecular Evolution
Molecular evolution is the study of the changes that occur in DNA and protein sequences over time, and how these changes relate to the evolutionary history and relationships of different species.