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Q66
(CISF/2023)
Science & Technology › Basic Science (Physics, Chemistry, Biology)
Which one of the following pairs correctly represents an example of analogous organs?
Explanation
Analogous organs are those that have different anatomical structures and embryonic origins but perform similar functions. They are the result of convergent evolution, where different species evolve similar traits independently to adapt to similar environmental challenges.
- Wings of birds and insects: Bird wings have an internal bony skeleton covered by feathers, whereas insect wings are composed of chitinous membranes supported by veins. Despite these structural differences, both are used for flight, making them analogous.
- Homologous organs: Options A, B, and D represent homologous organs. These share a similar basic anatomical structure (the pentadactyl limb pattern) inherited from a common vertebrate ancestor, even though they have been modified for different functions like running, grasping, or swimming (divergent evolution).
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SIMILAR QUESTIONS
Which one among the following is not an example of homologous organs ?
Which one of the following pairs about organ/part that helps in locomotion is not correctly matched?
Which one of the following is an example of vestigial organ in man ?
Consider the following pairs : 1. Blue-finned Mahseer : Cauvery River 2. Irrawaddy Dolphin : Chambal River 3. Rusty-spotted Cat : Eastern Ghats Which of the pairs given above are correctly matched?
Consider the following pairs :
Inventions
Inventors
I. Flying shuttle loom
John Kay
II. Water frame
James Hargreaves
III. Spinning jenny
Richard Arkwright
How many of the pairs given above are correctly matched?