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प्रश्न
Long answer question.
Would you consider wings of butterfly and bat as homologous or analogous and why?
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उत्तर
The wings of butterfly and bat are analogous but not homologous.
Examples of analogous structures are as follows:
1. Wings of butterfly (insects) and of birds look superficially alike but they are not anatomically similar structures though they perform similar functions.
2. Eye of the octopus (mollusca) and of mammals. They differ in their retinal position, the structure of lens, and the origin of different eye parts.
3. The flippers of penguins (birds) and dolphins (mammals).
4. Sweet potato (root modification) and potato (stem modification) store food in form of starch.
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संबंधित प्रश्न
“Two areas of study namely 'evolution' and 'classification' are interlinked'. Justify this statement.
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
Give the importance of fossil in support of organic evolution
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
Choose the correct option of the following question:
Wings of Insect and Birds are examples of :
Find an odd one out.
Appendix : vestigial organ : : Peripatus : ____________
Complete the flowchart.
What is carbon dating?
Observe the following images and answer the questions.
- Which evolutionary evidences are indicated in the given picture?
- How are they formed?
- Which method is used to measure their age or their time?
