For many species, there are often regional differences in their
a. common names
b. scientific names
c. taxa.
d. binomial nomenclature
Ans: a. common names
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In the Kinyoun acid-fast staining method, ______ replaces _____ in the primary stain solution
a. increased phenol; heat b. heat; increased phenol c. mycolic acid; heat d. carbolfuchsin; phenol
How does an enzyme work to catalyze a reaction?
A. It raises the temperature of a reaction. B. It lowers the activation energy of a reaction. C. It allows the reaction to proceed through different intermediates. D. It supplies the energy to speed up a reaction. E. It increases the concentration of the reactants in a reaction.
Long-day plants flower only when hours of darkness are ________
a. equal to hours of light b. decreasing c. less than a critical value for the species d. greater than a critical value for the species
The lytic cycle of bacteriophage infection ends with the _____.
a) replication of viral DNA b) entry of the phage protein coat into the host cell c) assembly of viral particles into phages d) the injection of phage DNA into a bacterium e) rupture of the bacterium