Evolution

Preformationism, also known as the theory of preformation, is a biological theory that originated in the 17th century and posits that all organisms develop from preexisting miniature versions of themselves, called "homunculi."

The Theory of Recapitulation, also known as Embryological Parallelism or Biogenetic Law, is a scientific theory that proposes a parallelism between the

Stanley Miller and Harold Urey in 1953 tested the Oparin – Haldane Theory and were successful in producing the organic molecules from some inorganic

In this article we will be covering the major differences between microevolution and macroevolution. 

The "Great Chain of Being" is the term used in medieval culture to describe the hierarchical order of the natural world.

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.

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.

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 is the study of small-scale changes in the genetic makeup of populations over time.

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 attempt to explain how species have changed over time and how new species arise.