Which of the following was not a challenge for survival of the first land plants? 

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#Question id: 751

#XL - Q Biochemistry

The effect of alkali is to change the ___________________ of the DNA structure:

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#Question id: 11535

#XL - R Botany

During IPA pathway in the biosynthesis of auxin using  following enzymes except_____

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#Question id: 11568

#XL - T Zoology

In a lactating mammal, the two hormones that promote milk synthesis and milk release, respectively, are ________.

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#Question id: 5603

#XL - T Zoology

During capacitation, the pathway is modulated by the removal of cholesterol from the sperm cell membrane, which allows 

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#Question id: 10172

#XL - R Botany

leaves continuously adjust the orientation of their laminae such that they remain perpendicular to the sun’s ray and maximize light absorption by