Solutes and Water Activity: major stressor
What will be an ideal response?
•water activity (aw)
-amount of water available to organisms
-reduced by interaction with solute molecules (osmotic effect)
higher [solute] Þ lower aw
-Measured as vapor pressure over solution relative to pure water
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Given what you now know, what information is most likely to produce the correct answer?
What will be an ideal response?
Mitotic divisions reduce the number of chromosomes found in daughter cells. Indicate whether the statement is true or false
A ____ is an example of a nonvascular plant.
A. liverwort B. rose C. red pine D. maiden hair fern
How does DNA polymerase differ from RNA polymerase?
A. Only DNA polymerase uses a template DNA strand to direct synthesis of a new nucleotide strand. B. Only DNA polymerase has a proofreading ability. C. Only RNA polymerase requires a primer. D. Only RNA polymerase adds new nucleotides to the 3' end of a growing chain.