You are working on a team to characterize a local lake's plankton community. Using a compound microscope, you isolate one specimen from a water sample. It is unicellular and has a specialized feeding groove cut into the cell surface. What cannot be true of this species?
A. It is heterotrophic.
B. Its locomotion is facilitated by one or more flagella.
C. Glycolysis takes place in a peroxisome.
D. It is an osmotroph.
E. Its locomotion is facilitated by inter-locking protein strips.
D. It is an osmotroph.
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The axial skeleton includes all EXCEPT which of the
following? a. skull b. ribs c. pectoral girdle d. sternum e. vertebral column
What term describes the process by which a cell acquires a certain fate from its neighboring cell?
What will be an ideal response?
When a chemical reaction is at equilibrium, which of the following statements is always TRUE?
a) the equilibrium constant (keq) equals 1 b) the ratio of the concentrations of reactants and products equals 1 c) the rate of the forward reaction is equal to the rate of the backward reaction d) all of the choices are correct
In which environment are you most likely to encounter an acidophile?
A. human blood at pH 7.2 B. a hot vent at pH 1.5 C. human intestine at pH 8.5 D. milk at pH 6.5