Question

What are vestigial organs? How their existence is satisfactorily explained by the doctrine of organic evolution?

Answer 1

Vestigial organs:

1. Vestigial organs are organs that have lost some or all of their ancestral functions and shapes in the organisms.
2. Organs such as the appendix, earlobe, and wisdom tooth in humans have no function in humans.
3. These organs may have served a purpose in ancestor animals, but not in modern ones.
4. These vestigial organs in humans and other animals were cited by Charles Darwin as proof of evolution.
5. Biologists eventually decided that distinct creatures must have shared a common ancestor after noticing how vestigial organs in one species were comparable to functioning organs in other species.
6. According to the concept of organic evolution, today's animals and plants evolved via millions of years of slow change in earlier rudimentary forms of life.
7. These life forms lost the use of some organs as they evolved and eventually became vestigial. As a result, the presence of vestigial organs supports the organic evolution theory.