In phloem movement, which of the following cannot serve as a sink?
a. young leaves
b. young roots
c. developing fruits
d. tulip bulbs after the plant has bloomed
e. soil
E
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Which of the following activities is not associated with cadherins?
A) segregation of cells to specific tissues B) paracellular transport C) embryonic development D) establishment of synaptic connections E) loss of activity associated with cancer
What do you think would result if nitrogen-fixing cyanobacteria populations suddenly declined?
A. Aquatic primary production would decline, particularly in regions not subject to fertilizer runoff. B. Legumes would cease to grow, but other types of plants would be unaffected. C. Both the aquatic and terrestrial populations of autotrophs would collapse. D. Populations of denitrifying bacteria would expand to take over their role, creating only a temporary disruption. E. More nitrogen would become available for other aquatic autotrophs.
________ must be added to a PCR to direct the polymerase where to begin synthesis
Fill in the blank(s) with correct word
When writing a scientific paper, which of the following are NOT a component of the Discussion sections?
A. Describing the main conclusions that support your statistical analysis. B. Talking about future experiments that can be done on your data. C. Graphical summaries of your data (like graphs and tables containing data). D. Alternative explanations for your results. E. Explaining the limitations of your study.