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Which is not a tool of tracing evolutionary relationships?
- a)Excavating
- b)Time- dating
- c)Historical details
- d)Determining DNA sequences
Correct answer is option 'C'. Can you explain this answer?
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Verified Answer
Which is not a tool of tracing evolutionary relationships?a)Excavating...
(i)By studying their structural design - homologous or anologous .It can give evidences of common ancestor. Forelimbs of humans and wings of birds look different externally. However, their skeletal structure is similar. Thus, their origin is similar, but functions are different. While wings help a bird in flight, the forearm helps human beings in various activities. These structures are called homologous organs.
(ii)By the study of fossils.A million years later, some dinosaurs died at the same place with their bodies getting buried on top of the sedimentary rock. As a result, the mud, containing the dinosaurs, also turned into rock.Now, if that area is excavated deeper, dinosaur and invertebrate fossils can also be found.
(iii)Comparing the DNA of different organisms. All species have the same genetic code. So we can trace some evolutionary relationship among the species.
Most Upvoted Answer
Which is not a tool of tracing evolutionary relationships?a)Excavating...
Evolutionary relationships can be easily traced with the help of tools like time dating, excavating and information about DNA sequences. Historical details of organisms are not helpful in tracing their evolutionary relationships.
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Which is not a tool of tracing evolutionary relationships?a)Excavatingb)Time- datingc)Historical detailsd)Determining DNA sequencesCorrect answer is option 'C'. Can you explain this answer?
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