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प्रश्न
______ is a vestigial organ in human beings.
पर्याय
Wisdom teeth
Ear muscles
Body hairs
All the above
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उत्तर
All the above
Explanation:
All the given options are vestigial organs/structures in human beings:
- Wisdom teeth – no longer needed for chewing tough food.
- Ear muscles – humans cannot move their ears like some animals.
- Body hairs – reduced in function compared to early humans.
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संबंधित प्रश्न
Explain with an example for the given, how the following provides evidence in favor of evolution in organisms:
Homologous organs
Study the following statements:-
I. Wings of birds and wings of bats are homologous organs.
II. Wings of birds and wings of insects are modified forelimbs.
III. Wings of birds and wings of insects are analogous organs.
IV. Wings of birds and forelimbs of horse are homologous organs.
The correct statements are
(A) I and II
(B) II and III
(C) III and IV
(D) I and IV
Select two pairs from the following which exhibit divergent evolution. Give reasons for your answer.
(i) Forelimbs of cheetah and mammals
(ii) Flippers of dolphins and penguins
(iii) Wings of butterflies and birds
(iv) Forelimbs of whales and mammals
Differentiate between analogy and homology giving one example each of plant and animal respectively.
Which of the following is a correct set of homologous organs?
(a) Forelimbs of frog, bird and lizard
(b) Spine of cactus and thorn of bougainvillea
(c) Wings of bat and wings of butterfly
(d) Wings of a bird and wings of a bat
Four students P, Q, R and S differently reported the following set of organs to be analogous :
P. Forelimb of a frog and forelimb of a lizard
Q. Forelimb of a bird and forelimb of a human
R. Wings of a parrot and wings of a butterfly
S. Wings of a bird and wings of a bat
The two students who have reported correctly are :
(A) P and Q
(B) Q and R
(C) R and S
(D) P and S
Can the wing of a butterfly and the wing of a bat be considered homologous organs? Why or why not?
Explain the terms analogous and homologous organs with examples.
Attempt giving a clear definition of the term species.
Enlist any four sequential evolutionary names of human ancestors.
Human tailbone is a vestigial organ. Explain.
Differentiate between analogous and homologous structures.
The wings of a housefly and the wings of a sparrow are an example of :
(a) analogous organs
(b) vestigial organs
(c) respiratory organs
(d) homologous organs
Answer the following question.
Wisdom teeth : Vestigial organs :: Lungfish : ....................
Differentiate between connecting links and the missing links.
Find an odd one out.
Complete the flowchart.
The fossil remains of Archaeopteryx is a connecting link between ______
Give an example for convergent evolution and identify the features towards which they are converging.
Industrial melanism in England after 1850 is an excellent example of Natural selection. Explain how?
