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Which of the following statements is not true ?
- a)Sweet potato and potato is an example of analogy
- b)Homology indicates common ancestry
- c)Flippers of penguins and dolphins are a pair of homologous organs
- d)Analogous structures are a result of convergent evolution
Correct answer is option 'C'. Can you explain this answer?
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Which of the following statements is not true ?a)Sweet potato and pota...
Explanation:
Homologous vs Analogous Structures:
Homologous structures are anatomical similarities between different species that are due to shared ancestry. These structures may have different functions, but they are derived from the same structure in a common ancestor. For example, the forelimbs of vertebrates like humans, cats, whales, and bats are homologous structures.
Analogous structures, on the other hand, are anatomical similarities between different species that are not due to shared ancestry but rather due to convergent evolution. These structures have similar functions but different origins. For example, the wings of birds and butterflies are analogous structures.
Flippers of Penguins and Dolphins:
The statement that the flippers of penguins and dolphins are a pair of homologous organs is not true. While the flippers of penguins and dolphins serve a similar function (swimming), they are actually an example of analogous structures. Penguins are birds and dolphins are mammals, so their flippers have different anatomical origins and evolved independently to serve the same purpose through convergent evolution.
Therefore, the correct statement should be that the flippers of penguins and dolphins are an example of analogous structures, not homologous organs.
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Which of the following statements is not true ?a)Sweet potato and pota...
Flippers of penguins and dolphins are not homologous organs, but rather analogous structures. While both flippers serve a similar function (swimming), they evolved independently in these two groups of animals. Penguins are birds, and their flippers evolved from the modification of bird wings, while dolphins are mammals, and their flippers evolved from the modification of mammal forelimbs. This is an example of convergent evolution, where unrelated organisms independently evolve similar traits due to similar environmental pressures. Homologous structures, on the other hand, are structures that share a common ancestry, even if they serve different functions in different organisms.
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Which of the following statements is not true ?a)Sweet potato and potato is an example of analogyb)Homology indicates common ancestryc)Flippers of penguins and dolphins are a pair of homologous organsd)Analogous structures are a result of convergent evolutionCorrect answer is option 'C'. Can you explain this answer?
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