Question

What are the pieces of evidence of organic evolution? How comparative anatomy and embryology of animals give evidence of organic evolution?

Answer 1

Organic evolution is the hypothesis that more recent species of plants and animals have their beginnings in other pre-existing forms, and that noticeable distinctions between progenitors and descendants are the result of subsequent generations' alterations. Evidence of organic evolution are Paleontological Evidence, Missing Links, Comparative Anatomy and Morphology, Comparative embryology of organisms, Biogeographical Evidence.

Complete answer:
According to the concept of organic evolution, today's animals and plants evolved over millions of years by a process of progressive change in previously rudimentary forms of life.
Comparative embryology studies demonstrate that diverse groupings of plants and animals have a lot in common. All multicellular creatures' embryos develop from a single cell (zygote) and go through a similar set of phases.
Another piece of evidence for organic evolution is comparative anatomy. The neurological system, blood circulatory system, respiratory system, excretory system, and other systems of the animal body are comparable in many kinds of species. Despite their general similarities, organ systems of different taxa exhibit differing degrees of specialization depending on habitat and evolutionary scale. Other types of anatomical evidence include vestigial organs and homologous organs.

Additional information:
Charles Darwin, possibly the greatest of all contributors, is almost frequently mentioned in this context. Darwin's work as a naturalist is responsible not only for the theory of evolution as we know it today, but also for the foundation on which biological sciences are built.
Beginning in , Darwin worked on the now-well-known hypothesis that evolution is primarily caused by the interaction of three principles:
variation—a liberalizing component found in all forms of life that Darwin did not seek to explain.
heredity—the conservative force that transmits traits.

Note:
Variation, inheritance, selection, and time are the four principles at work in evolution. These are thought to be components of natural selection's evolutionary mechanism. The process by which populations of organisms change over generations is known as evolution. These modifications are caused by genetic variants. If a characteristic is beneficial and helps an individual live and reproduce, it is more likely to be handed along to the following generation (a process known as natural selection).