Question

Define organic evolution. Why is biological evolution called organic evolution?

Answer 1

Hint: Evolution is the characteristics of any organism from generation to generation depending on the process of natural selection.

Complete answer:
To solve this question, we have to first understand the detailed meaning of evolution. The evolution is the changes in an organism either genotypic or phenotypic from generation to generation. Evolution has many theories that help to study the ancestors of an organism.
Now, organic evolution is the theory that deals with the origin of more recent types of animals and plants, compared with the pre-existing forms and the study of distinguishable differences among the ancestors and descendents that caused due to successive generation modification. For example, we have noticed larvae of a frog. They have tails that help them to swim and they respire from the gills, this indicates that the frog may have evolved from ancestors that have fish-like characteristics. There is evidence that supports organic evolution; the science of fossils that is palaeontology, it gives the direct and strongest evidence to support the organic evolution theory. Fossils are the remains of dead animals and plants that were preserved in rock of the past.
Biological evolution means the changes in the characteristics of any organism from generation to generation. The change is gradual and orderly from simple to complex form, and as the living organisms are made up of organic matter, the biological evolution is also referred to as organic evolution.

Note: The evolution is based on three theories; the theory of natural selection or Darwin’s theory, the mutational theory or De Vries theory, and the synthetic theory of evolution or Neo-Darwinism. All these theories together broad the concept of evolution.