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प्रश्न
Write names of some vestigial organs in the human body.
Write two names of some vestigial organs in human body.
Write names of any two vestigial organs in the human body.
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उत्तर
The human body contains several vestigial organs, including the tailbone (coccyx), wisdom teeth, and body hairs.
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संबंधित प्रश्न
Mammals : _________ : : Amphibia : Fishes
Given below is the list of vegetables available in the market. Select from these the two vegetables having homologous structures:
Potato, sweet potato, ginger, radish, tomato, carrot, okra (Lady’s finger)
(A) Potato and sweet potato
(B) Radish and carrot
(C) Okra and sweet potato
(D) Potato and tomato
Which of the following pairs of two vegetables represent the correct homologous structures?
(A) Sweet potato and potato
(B) Sweet potato and tomato
(C) Carrot and potato
(D) Radish and carrot
Can the wing of a butterfly and the wing of a bat be considered homologous organs? Why or why not?
Enlist any four sequential evolutionary names of human ancestors.
Name any two temporary embryonic structures in vertebrates which provide evidence for evolution.
What are homologous organs?
Human tailbone is a vestigial organ. Explain.
Name two animals having homologous organs and two having analogous organs. Name these organs.
The presence of which of the following types of organs in two animals indicates that they are not derived from a common ancestor?
(a) homologous organs
(b) excretory organs
(c) analogous organs
(d) reproductive organs
There are five animals A, B, C, D and E. The animal A uses its modified forelimbs for flying. The animal B uses its forelimbs for running whereas the animal C uses its forelimbs for grasping. The animal D can live on land as well as in water and uses its forelimbs to prop up the front end of its body when at rest. The animal E which respires by using spiracles and tracheae uses wings for flying but its wings are analogous to the modified forelimbs of animal A.
(a) What could the animals A, B, C, D and E be?
(b) Why are the forelimbs of animals A, B, C, D called homologous organs?
(c) What does the existence of homologous organs in animals A, B, C and D tell us about their ancestors ?
(d) Why are the modified forelimbs of animal A and the wings of animal E called analogous organs?
(e) State whether animals A and E have a common ancestor or not.
Identify the following pairs as homologous and analogous organs:
(i) Sweet potato and potato
(ii) Eye of octopus and eye of mammals
(iii) Thorns of Bougainvillaea and tendrils of Cucurbits
(iv) Fore limbs of bat and whale
Vestigial organ ______ present in human body is proof of evolution.
Observe the picture and answer the following questions.
A) Which evidence of evolution is shown in the picture?
B) What can be proven with this proof?
C) Give one more example of evidence of evolution
Complete the following chart:
Draw a labelled diagram of T.S. of a leaf showing Kranz anatomy.
Define phylogeny.
What are homologous structures?
Very short answer question:
What is vestigeal organ?
Short answer question.
Give the significance of fossils.
Long answer question.
Would you consider wings of butterfly and bat as homologous or analogous and why?
Similarities in the initial stages indicate the _______ evidence.
Find an odd one out.
Give scientific reason.
Duck-billed platypus shows relationship with mammals.
Enlist the evidences of evolution.
Explain any five types of evidence that support the theory of evolution.
Select the CORRECT match.
Select the CORRECT set of homologous organs.
Why do all the gametes formed in human females have an X chromosome?
Cucurbits do not develop thick and woody stem as they are:
Study of fossils is ______.
The process of mating of individuals, which are more closing related than the average of the population to which they belong is called ______.
Analogous organs arise due to ______.
Give an example for convergent evolution and identify the features towards which they are converging.
Find odd one out:
Write avian characters of Archaeopteryx.
