The following points highlight the four main theories in mechanism of evolution. The theories are: 1. Lamarck's Theory 2. Darwin's Theory of Evolution 3. De Vries' Theory 4. Modern Theory of Evolution. 1. Lamarck's Theory: Jean Baptiste Lamarck (1744-1829), a French naturalist, made several valuable contributions to biological science, including the coining of the term 'biology' and using the same [...]
The below mentioned article provides an overview on the Evolution in Plants and Animals. The term evolution means unrolling or unfolding (Latin word 'evolve' = unfolding). It is defined as the process of gradual and orderly change from one condition to another. Such gradual and orderly changes are taking place in all the living, as well as non-living things. The [...]
The following points highlight the top five theories of the evolution of organic forms. The theories are: 1. Theory of Eternity of Present Conditions 2. Theory of Special Creation or Creationism 3. Cosmozoic Theory 4. Theory of Catastrophism and Spontaneous Creation 5. Theory of Organic Evolution. Theories of the Evolution of Organic Forms: Theory of Eternity of Present Conditions Theory [...]