In robert h. Whittaker's approach to relating terrestrial biomes and climatic variables, the principal biomes fall in a triangular area that does not include climates with __________.

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#Question id: 19080

#Unit 4. Cell Communication and Cell Signaling

Which type of pathogens produces cell wall‐degrading enzymes tend to attack a broad range of plant species?

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#Question id: 15974

#Unit 12. Applied Biology

Growth regulator is not required for___

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#Question id: 10295

#Unit 6. System Physiology – Plant

Reactions of the pentose phosphate pathway regeneration run six turns of this cycle, what will be predict after that?

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#Question id: 1096

#Unit 4. Cell Communication and Cell Signaling

Which of the following processes generally requires protein phosphorylation?

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#Question id: 3818

#Unit 3. Fundamental Processes

DNA replication is studied in a newly discovered bacterium. It takes 30 min for the bacterium to complete a round of replication at 37oC. A Meselson-Stahl-type experiment was performed. The bacteria were grown for several generations in 14N-medium and then switched to 15N-medium. The DNA molecules were then analyzed.

If the mechanism of DNA replication in this bacterium were semi-conservative, what results would be found when the double-stranded DNA was analyzed in a CsCl density gradient after three generations in 15N-medium?