Changes in sediment distribution can be attributed to all except:
a. currents.
b. burrowing animals.
c. feeding activity of predators.
d. temperature - salinity shifts.
D
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What functional group (or groups) of microbes would be most useful in a microbial fuel cell in which electrons are transferred to and from solid metal electrodes? Why?
What will be an ideal response?
During both CAM and C4 photosynthesis, what is the role of the PEP carboxylase enzyme?
A. to create ATP B. to create HCO3 C. to create 3-carbon organic acids D. to create 4-carbon organic acids
What is required for facilitated diffusion to take place?
a. energy from ATP b. a transmembrane protein c. the transport of large food particles d. the transport of small nonpolar molecules e. movement down a concentration gradient
Saline soils have a higher water potential than plant roots.
Answer the following statement true (T) or false (F)