The gradual, cumulative, adaptive and heritable changes in an organism over a long period of time resulting in emergence of new species is known as

The gradual, cumulative, adaptive and heritable changes in an organism over a long period of time resulting in emergence of new species is known as organic evolution. Organic evolution is the process by which species of organisms change over time through the gradual accumulation of beneficial adaptations. This process occurs through the mechanisms of natural selection, genetic drift, and gene flow, which act to alter the frequency and distribution of genetic traits within a population. Through organic evolution, new species can arise from common ancestors through the process of speciation, where isolated populations of organisms diverge genetically and eventually become distinct species. This process can occur through geographic isolation, ecological specialization, or reproductive isolation. The concept of organic evolution was first proposed by Charles Darwin in the mid-19th century, and has since become a fundamental principle in the field of biology. The study of evolution provides insights into the diversity of life on Earth and the complex relationships between different organisms and their environments. In summary, the gradual, cumulative, adaptive and heritable changes in an organism over a long period of time resulting in emergence of new species is known as organic evolution, which is a fundamental principle in the field of biology.