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प्रश्न
Define the evidence of evolution shown in the figure.
उत्तर
The evidence of evolution indicated in the given diagram is vestigial organ.
Vestigial organs: Vestigial organs are useless organs that are degenerated or underdeveloped due to non-functionality through several years.
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संबंधित प्रश्न
Write the similarity between the wing of a butterfly and the wing of a bat. What do you infer from the above with reference to evolution?
If you are asked to select a group of two vegetables, out of the following, having homologous structures which one would you select?
(a) Carrot and radish
(b) Potato and sweet potato
(c) Potato and tomato
(d) Lady finger and potato
Four students A, B, C and D reported the following set of organs to be homologous. Who is correct ?
(A) Wings of a bat and a butterfly
(B) Wings of a pigeon and a bat
(C) Wings of a pigeon and a butterfly
(D) Forelimbs of cow, a duck and a lizard
Enlist any four sequential evolutionary names of human ancestors.
Give the importance of fossil in support of organic evolution
Explain with an example for the given, how the following provides evidence in favor of evolution in organisms :
Analogous organs
Explain the evolution of giraffe's neck according to Lamarck's theory of evolution.
Differentiate between analogous and homologous structures.
The organs which perform different functions but have the same basic structure are known as :
(a) homologous organs
(b) analogous organs
(c) homolytic organs
(d) analytic organs
Some dinosaurs had feathers although they could not fly birds have feathers that help them to fly. In the context of evolution, this means that ______
You have potato, carrot, radish, sweet potato, tomato and ginger bought from the market in your jute bag. Identify two vegetables to represent the correct homologous structures.
(A) Potato and tomato
(B) Carrot and tomato
(C) Potato and sweet potato
(D) Carrot and radish
Write short notes based upon the information known to you.
Connecting link
Answer the following question.
Wisdom teeth : Vestigial organs :: Lungfish : ....................
Define fossil.
_____________ is a vestigial organ in human beings.
Find an odd one out.
Give scientific reason.
Duck-billed platypus shows relationship with mammals.
A human hand, a front leg of a cat, a front flipper of a whale and a bat’s wing look dissimilar and adapted for different functions. What is the name given to these organs?
Select the correct statement.
Why do all the gametes formed in human females have an X chromosome?
Evolution has exhibited a greater stability of molecular structure when compared with morphological structures. Comment on the statement and justify your opinion.
Cucurbits do not develop thick and woody stem as they are:
Palaeontological evidence for evolution refers to the ______.
Basic principles of embryonic development were pronounced by:
Evolutionary convergence is the development of:
Which is not a vestigial organ in a man?
Organs having similar functions but different origin and development are known as:
Analogous organs arise due to ______.
Appearance of antibiotic-resistant bacteria is an example of ______.
What were the characteristics of life forms that had been fossilised?
What are we referring to? When we say 'simple organisms' or 'complex organisms'.
How do we compute the age of a fossil?
Complete the following chart:
Find odd one out:
Find the odd one out:
Evolutionary convergence is the development of a ______.
Industrial melanism was highlighted by ______.
Pick the odd man out:
