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Class 10 · Science
→Why can evolution not be explained only on the basis of acquired traits?
Class 10 · Science
→Why is comparison of living organisms with fossils useful in the study of evolution?
Class 10 · Science
→If two organs perform the same function of flying but have different origins, what type of organs are they?
Class 10 · Science
→If two organisms have organs with different functions but similar basic structure, what can these organs indicate?
Class 10 · Science
→Why can relying only on external appearance be wrong while deciding relationships among organisms?
Class 10 · Science
→What is the scientific meaning of similarity between humans and chimpanzees?
Class 10 · Science
→Why is it more correct to see evolution as a branching tree rather than a straight ladder?
Class 10 · Science
→Which statement shows that evolution explains both similarity and difference?
Class 10 · Science
→What main idea did Mendel understand from a dihybrid cross?
Class 10 · Science
→If two traits are studied together what type of Mendel's experiment is it?
Class 10 · Science
→Only one form of a trait appears in the first generation out of two forms. This points to which idea?
Class 10 · Science
→What is the correct relation between genes and chromosomes?
Class 10 · Science
→If a change occurs only in body cells and not in reproductive cells why will it not pass to the next generation?
Class 10 · Science
→Which statement correctly relates natural selection and variation?
Class 10 · Science
→Which situation can be considered an important step towards formation of a new species?
Class 10 · Science
→How can geographical isolation contribute to speciation?
Class 10 · Science
→What may be necessary in separated groups for speciation?
Class 10 · Science
→What is the most important difference between homologous and analogous organs?
Class 10 · Science
→Why are the wings of a bird and an insect called analogous organs?
Class 10 · Science
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