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Earn 100

Presence of gill slits in the embryo of all vertebrates supports the theory of

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Important Questions on Heredity and Evolution

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What are homologous structures? Give an example. Is it necessary that homologous structures always have a common ancestor? Justify your answer.
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Two similar pea plants are growing in two different islands separated by a vast ocean. The phenomenon of geographical isolation will
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Population are said to be sympatric when-
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What are homologous structures? Give an example.
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The wings of house fly and the wings of a sparrow are an example of:
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Human evolution was supposed to take place in
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Scientist who proposed the theory of natural selection was-
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Which of the following traits would an evolutionary biologist consider to understand the divergent evolution process?
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Select the set of analogous organs from the following:-
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Variations are important as they produce:–
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Some dinosaurs had feathers, although they couldn’t fly but birds have feathers that help them to fly. In the context of evolution this means:
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Organs that look different and perform different functions but have a similar basic structure and origin is called: 
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Which of the following evidences suggest the common ancestry of fish and birds?

(A) Presence of fins and wings
(B) Same excretory product in fishes and birds
(C) Same respiratory organs in adult organisms
(D) Similarity in embryonic structure

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Identify the vestigial organ in human body.
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Phylloclades in some plants perform which distinct function?
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Pelvic bone became rudimentary in which animal?
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What is the basis of having homologous organs?
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Identify the common feature of analogous organs?
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Which of the following classes of animals possessed a two-chambered heart?
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Identify the vestigial organ in the human body.