Damaged sieve elements are sealed off, but because of the processs that plug sieve plates pores, excuded phloem sap from wounds that sever sieve elements. Exudation of sap enhanced by the inclusion of;

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#Question id: 14563

#Section 2: General Biology

During which phase of the bacterial growth curve does the total number of viable cells decline?

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#Question id: 14564

#Section 2: General Biology

The lag phase of the bacterial growth curve is marked by

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#Question id: 14565

#Section 2: General Biology

The Gram stain and the endospore stain both use

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#Question id: 14566

#Section 2: General Biology

A pure culture in exponential growth phase has a bacterial concentration of 6.4 x 10⁸ cells/ml. If the bacterium has a generation time of 1 h, how long ago was the cell

concentration 8.0 x 10⁷ cells/ml?

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#Question id: 14567

#Section 2: General Biology

In a rapidly multiplying bacterial population, cell numbers increase

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#Question id: 14568

#Section 2: General Biology

Generally the proteins of thermophiles