WHY DO ANIMALS HAVE CERTAIN USELESS ORGANS IN THIER BODY
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SOME ANIMALS HAVE SOME VESTIGLE ORGANS IN THEIR BODY BECAUSE THEY ARE THOSE ORGANS WHICH WERE PRESENT FROM CENTURIES DUE TO SOME NATURAL EVOLUTION.
THESE TYPES OF ORGANS ARE NOT LONGER IN WORK SO THEY CALLED VESTIGLE ORGANS.
PLZ MARK IT BEST
THESE TYPES OF ORGANS ARE NOT LONGER IN WORK SO THEY CALLED VESTIGLE ORGANS.
PLZ MARK IT BEST
kvnmurty:
certain bones or organs, scales, tissues - remain in genes of species but are not used - this is due to natural evolution over centuries
NOW I THINKB IT CRRECT
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THANX
can u give some examples of such organs
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Certain bones or organs, scales, tissues - in some animals of human beings are not used. They remain in them because they inherit the genes from their ancestors and so those organs are present from the time of birth.
These are called vestigial structures or features.
It happens due to natural evolution over centuries. Certain organs are not used due to changed lifestyles. They slowly diminish and vanish in the process of evolution of species.
In human beings it is said that the tail bone is not used. Some bones in humans are underdeveloped as compared to animals. So we cannot hear as good as them. A whale has very small hind legs that are not used.
There are some more examples related to cats, fish insects and so on.
These are called vestigial structures or features.
It happens due to natural evolution over centuries. Certain organs are not used due to changed lifestyles. They slowly diminish and vanish in the process of evolution of species.
In human beings it is said that the tail bone is not used. Some bones in humans are underdeveloped as compared to animals. So we cannot hear as good as them. A whale has very small hind legs that are not used.
There are some more examples related to cats, fish insects and so on.
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