A decrease in the price of pizza will()
A. decrease the quantity of pizza demanded
B. increase the quantity of pizza demanded
C. decrease the demand for pizza
D. increase the demand for pizza
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The following ____ is the function of the bacterial capsule()
A. Store carbon sources
B. Store phosphorus
C. Store energy
D. Anti-drying
E. Anti-chemical agents
Bacterial flagella is composed of several parts()
A. Flagella
B. Hair follicle
C. Matrix
D. Hook sheath
E. Fiber tube
Use _____ when observing the shape of bacterial capsule()
A. Insert method
B. Printing method
C. Water immersion method
D. Negative staining
The content used by prokaryotic cells to store carbon sources is ___()
A. Poly-β-hydroxybutyric acid
B. Sulfur drops
C. Metachromatic grain
D. Plasmid