What is the name for parasitic viral DNA that has been integrated into the chromosome of its bacterial host?
A. arbovirus
B. prophage
C. prophase
D. viroid
E. virion
Answer: B
Biology & Microbiology
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Which of the following ions plays the most prominent known role in the opening and closing of
stomata?
a. Ca2+ b. Cl? c. K+ d. NH4 + e. Na+
Biology & Microbiology
The enzyme lactase splits the lactose molecule into ____________ and ____________. Fill in the blank(s) with the appropriate word(s)
Biology & Microbiology
Because of hemoglobin, blood is able to carry ____ times more oxygen than what can dissolve in the blood
a. 30 b. 40 c. 50 d. 60 e. 70
Biology & Microbiology
Ecological efficiency is usually higher in aquatic ecosystems than on land, in part because photosynthetic protists do not make ____, as most land plants do.
A. chlorophyll B. ATP C. lignin D. cellulose E. organic material
Biology & Microbiology