The nucleoplasm has a different fluid composition than the cytoplasm of a cell.
a. true
b. false
Answer: a. true
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The results of an experiment
(a) don’t have to be repeatable. (b) should be repeatable by the investigator. (c) should be repeatable by other investigators. (d) must be both b and c.
Measurement of relative water content (RWC) can be used to predict a:
A. plant's ability to recover from cell collapsing B. wilted condition C. need for fertilizers D. cold shock E. salt tolerance
After which step in the Gram-stain procedure are gram-positive bacteria first distinguished from gram-negative bacteria?
a. Crystal violet b. Iodine mordant c. Gram's decolorizer d. Safranin
Which of the following statements about predation are true? Check all that apply.
_____ Cycling of predator and prey populations is not commonly observed. _____ Removal of a predator often leads to increased community stability. _____ Animal predation on plants is called herbivory. _____ Predation can induce coevolutionary changes in prey species. _____ Batesian mimicry is not a coevolutionary adaptation to predation.