Figure 38.4
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The following two questions refer to the figure above showing a fish gill filament.
The most oxygenated blood is indicated by the letter ____.
A. A
B. B
C. C
D. D
E. E
Answer: D
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What would likely occur if an anammox bacterium was unable to use ladderane lipids?
A) Ammonium rather than ammonia would be used due to ammonia toxicity to other cellular processes. B) It would require a different source for carbon assimilation. C) Rates of anammox would be considerably slower due to a lack of localized metabolism. D) Reactive nitrogen species would kill the cell.
What are the two organ systems of a vascular plant body?
a. shoots and roots b. stems and leaves c. stems and roots d. leaves and roots e. leaves and flowers
Gene duplications
a. have proved to be adaptive in some cases. b. have resulted in many slightly different hemoglobin molecules in primates. c. always have negative consequences. d. can occur via unequal crossovers at prophase I. e. are all of these EXCEPT “always have negative consequences.”
According to the ________ principle, a muscle cell contracts completely when adequately stimulated by a motor neuron
Fill in the blank(s) with correct word