Which of the following can stimulate a reactivation of the virus that causes cold sores?
A. Ultraviolet light
B. Physical stress (fever, cold winds, trauma, hormonal changes)
C. Emotional stress
D. All of the choices are correct.
Answer: D
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Which of the following has NOT contributed to the adaptive success of angiosperms over
gymnosperms?
a. vessel elements b. more efficient sugar transport c. ovary d. fruit e. tracheids
What are the similarities and differences between obligate pathogens and free-living saprotrophs in the ways they control the rate and type of biosynthesis?
What will be an ideal response?
Which one of the following characteristics applies to both living organisms and nonliving things?
A) composed of matter B) capable of reproduction C) capable of storing energy for later use D) capable of growth E) composed of cells
Which strategy do viruses with small genomes, such as the MS2 phage, use to make their small genomes more efficient?
a. relying on the host to supply RNA replicase for replication b. possessing overlapping genes that encode for multiple proteins c. keeping the number of genes in their genome to a maximum of three d. all of the above