The organisms isolated from hydrothermal vents are typically
A. phototrophs.
B. chemolithoautotrophs.
C. rhizobia.
D. bacteroid.
E. phototrophs, rhizobia AND bacteroid.
B. chemolithoautotrophs.
You might also like to view...
If bacteria living in salty seawater were displaced to a freshwater environment, the cell structure that would prevent the cells from rupturing is the ________.
A. capsule B. cell membrane C. endospore D. cell wall E. slime layer
Visible light comprises wavelengths that vary between ____ nanometers
a. 380 and 750 b. 350 and 750 c. 390 and 780 d. 340 and 740 e. 320 and 740
The primary ions that contribute to the salinity of ocean waters are
A) calcium and sodium. B) sodium and chloride. C) sodium and carbonate. D) calcium and chloride.
A noncompetitive inhibitor decreases the rate of an enzyme reaction by _____
A) binding at the active site of the enzyme B) changing the shape of the enzyme's active site C) changing the free energy change of the reaction D) acting as a coenzyme for the reaction