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प्रश्न
Vestigial organ ______ present in human body is proof of evolution.
पर्याय
Human hand
Appendix
Ear muscles
Tail-bone
Gradual development
Mutation
Gene
Transcription
Translocation
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उत्तर
Vestigial organ appendix present in human body is proof of evolution.
Explanation:
The appendix, which is useless to humans, is a useful and fully functional organ in ruminants. Similarly, muscles of the ear pinna, which are useless to humans, are useful in monkeys for the movement of the ear pinna. Various vestigial organs like the tailbone (coccyx), wisdom teeth, and body hairs are present in the body of a human being.
Notes
Above question has three possible answers, [Option (B), (C) and (D)].
संबंधित प्रश्न
Attempt giving a clear definition of the term species.
Name any two temporary embryonic structures in vertebrates which provide evidence for evolution.
The organs P and Q of two animals have different structures but similar functions. On the other hand, the two organs R and S of two other animals have the same basic structure but different functions.
(a) What are the organs like P and Q known as?
(b) Name the organs like P and Q. Also name the animals which have such organs.
(c) What are the organs like R and S called?
(d) Name the organs like R and S. Also name the animals which have such organs.
Write the names of those animals in whom some vestigial organs in human body are functioning.
Complete the following chart:
Explain the importance of Anatomical evidences with examples.
Appendix : vestigial organ : : Peripatus : ____________
Write a short note:
Embryological evidences
The fossil remains of Archaeopteryx is a connecting link between ______
Evolution has exhibited a greater stability of molecular structure when compared with morphological structures. Comment on the statement and justify your opinion.
Homologous organs are:
Basic principles of embryonic development were pronounced by:
Organs having similar functions but different origin and development are known as:
What are we referring to? When we say 'simple organisms' or 'complex organisms'.
How do we compute the age of a living tree?
Find odd one out:
Industrial melanism was highlighted by ______.
Industrial melanism in England after 1850 is an excellent example of Natural selection. Explain how?
