Which of the following animals does not undergo metamorphosis?
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Which of the following organisms are known as chief producers in the oceans?
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Which one of the following population interactions is widely used in medical science for the production of antibiotics?
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All of the following are included in ‘ex-situ conservation’ except
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Match the items given in Column I with those in Column II and select the correct option given below :
Column-I | Column-II |
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a. Eutrophication | i. UV-B radiation | b. Sanitary landfill | ii. Deforestation | c. Snow blindness enrichment | iii. Nutrient | d. Jhum cultivation | iv. Waste disposal |
a b c d
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In a growing population of a country,
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Which part of poppy plant is used to obtain the drug “Smack”?
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All of the following are part of an operon except
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A woman has an X-linked condition on one of her X chromosomes. This chromosome can be inherited by
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According to Hugo de Vries, the mechanism of evolution is
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