Question

Write the names of those animals in whom same organs are Functional. ?​

Answer 1

Vestigial organs is a term used for organs which are degenerated, underdeveloped or useless for an organism. Usually, with the changes in the outer environment, the organs undergo a gradual change in order to cope up with those changes. Presence of vestigial organs is an indication that they were useful for our ancestors but as we evolved with the changing surroundings, these structures lost their functionality but are still found in our bodies. It is not compulsory that if an organ is vestigial for humans, so will it be for other organisms too.

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Answer 2

Vestigial organs are organs that have deteriorated, undeveloped, or are no longer useful to the organism. Organs often undergo progressive alterations in response to changes in the external environment in order to cope with such changes. Vestigial organs indicate that they were once beneficial to our ancestors, but as we evolved in response to our changing environment, these structures lost their function yet are still present in our bodies. It is not necessary that if an organ is vestigial in humans, it is also vestigial in other creatures.