The most recent common ancestor of all land plants was probably similar to modern-day members of which group? 

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#Question id: 3746

#XL - Q Biochemistry

During recombination in E. coli, ________ recognize(s) regions of sequence similarity and promote(s) strand invasion, while ________ bind(s) to a Holliday junction promoting strand migration.

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#Question id: 9566

#XL - T Zoology

Which of the following adaptations helps kangaroo  rats conserve water?

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#Question id: 10815

#XL - T Zoology

The evolution of two interacting species in a community is referred to as ________________.

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#Question id: 19646

#XL - P Chemistry

Bond length of (I) ethane, (II) ethene, (III) acetylene and (IV) benzene follows the order:

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#Question id: 2116

#XL - S Microbiology

When a cell is in equilibrium with its environment, which of the following processes occurs for substances that can diffuse through the plasma membrane?