There are at least a dozen known species in the extinct genus Lystrosaurus. If each species was suited to a quite different environment, then this relatively large number of species is likely due to

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#Question id: 17670

#Unit 9. Diversity of Life Forms

The following are common to both charophytes and land plants except 

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#Question id: 5532

#Unit 5. Developmental Biology

When does a human egg cell accomplish its meiotic division?

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#Question id: 3898

#Unit 3. Fundamental Processes

Which one of the following classes is expressed in the unfertilized egg and is involved in directing the spatial organization of the Drosophila embryo early in development?

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#Question id: 23504

#General Aptitude

Surface Ozone is produced from

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#Question id: 939

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following is/are true concerning transanimation reactions?