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Which of the following is an example of ex-situ conservation?

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Important Questions on Laws of Motion

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The potential energy of a system increases if work is done
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A mass M attached to a horizontal spring executes S.H.M. of amplitude A1. When the mass M passes through its mean position, then a smaller mass m is placed over it and both of them move together with amplitude A2. The ratio of A1A2 is
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Mycorrhizae are the example of:
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A body of mass M moving with velocity v explodes into two equal parts. If one part comes to rest and the other part moves with velocity v0; what would be the value of v0?
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What is true about foliage of Cycas
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Mycorrhiza exhibits the phenomenon of
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Ovules in Pinus are generally
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Seed of Pinus shows three generations as
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The lateral conduction in gymnospermic leaf is by:
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Who among the following was a paleobotanist?
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In gymnosperms pollination is exclusively by
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Female cone of Pinus is considered equivalent to
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Number of cotyledons is Zea, Cycas and Pinus respectively are
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Siphonogamous fertilization takes place in
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In pteridophytes, phloem is without