Q:

What is organic evolution?

A:

Quick Answer

Organic evolution are the events involved in the evolutionary development of a species. It means that all life descended from other life, although features may have changed dramatically along the way.

Continue Reading
What is organic evolution?
Credit: Malfuros CC-BY-SA 3.0

Full Answer

Organic evolution involves modifications to existing species, not the development of new ones. Charles Darwin came up with an explanation of evolution known today as Darwinism. Darwinism explains an organism's struggle to exist as well as survival of the fittest and acquired characteristics. J.B. Lamarck believed organic evolution happened because future generations inherited specific characteristics and his theories came before Darwinism.

Examples of organic evolution include organs that are different in structure, but perform similar functions. A dolphin's flippers and a human's arms are examples of organic evolution. Biogeography suggests that certain species developed characteristics to help them survive in different parts of the world. One creature's hands, for example, may only be suitable to the area in which that creature lives and would be useless in another area of the world. Divergence is the process in which organisms develop new, unique traits unknown to their ancestors.

Part of evolution involves the mutation theory. The mutation theory suggest that mutations in genes can be found in all living organisms. Darwinism combined with the mutation theory form Neo-Darwinism, the modern theory of evolution.

Learn more about Biology
Sources:

Related Questions

  • Q:

    What is divergent evolution?

    A:

    Divergent evolution is the mechanism that causes different species to arise from common ancestors, the evolution toward greater difference in related organisms. In the classification system it is a part of, it is one of three types of evolution, the others being convergent evolution and coevolution. None of these types are truly separate, and in almost any case of convergent evolution or coevolution, divergent evolution is also occurring.

    Full Answer >
    Filed Under:
  • Q:

    What is the difference between convergent and divergent evolution?

    A:

    Divergent evolution is the process of two or more related species becoming more and more dissimilar, while convergent evolution is unrelated species becoming more similar in appearance as they adapt to the same environment. The two types of evolution are important in generating variation and ensuring that species play their role.

    Full Answer >
    Filed Under:
  • Q:

    What is mosaic evolution?

    A:

    Mosaic evolution occurs when the gene alleles of an organism or species evolve at different rates. Marks of mosaic evolution include the development of features within a species or organism at different times.

    Full Answer >
    Filed Under:
  • Q:

    When does divergent evolution occur?

    A:

    Divergent evolution happens with the formulation of a new species from a larger population, explains JRank. Evolutionary adaptations necessary for survival cause a subset within a population to adapt differently to the point that a new species emerges.

    Full Answer >
    Filed Under:

Explore