Which biome has the least primary productivity?
a. tundra
b. taiga
c. grassland
d. desert
e. tropical rain forest
a
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In a biochemical reaction, reactants may be converted into products. The extent to which this occurs spontaneously is expressed as which of the following?
A) ?G B) Keq C) ?S D) temperature E) T?S
The differences in concentration of which pair of ions produces the resting membrane potential?
a. sodium and potassium b. sodium and chloride c. potassium and chloride d. chloride and calcium e. calcium and sodium
Specialized food-conducting cells in vascular plants, known as ________, distribute sugars and other substances throughout the plant.
A. Phloem B. Stomata C. Tracheids D. Meristems E. Xylem
Which of the following is mismatched?
A) Burkholderia — melioidosis B) Coxiella — Q fever C) Mycoplasma — walking pneumonia D) Chlamydophila — psittacosis E) Mycobacterium — whooping cough