Four of the five answers listed below are acidic (pH below 7). Select the exception
a. vinegar
b. soft drink
c. soap
d. lemon juice
e. beer
C
Biology & Microbiology
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The blood pressure is lowest in the _____
A) aorta B) arteries C) arterioles D) left ventricle of the heart E) vena cava
Biology & Microbiology
The most important ion in controlling the movement of water into and out of the guard cells is
A. sodium. B. hydrogen. C. carbon. D. nitrogen. E. potassium.
Biology & Microbiology
After the primary stain has been added but before the decolorizer has been used, gram-positive organisms are stained ________ and gram-negative organisms are stained ________.
A. purple; colorless B. purple; purple C. purple; pink D. pink; pink
Biology & Microbiology
Detrital food chains contain all of the following except
A) carnivores. B) herbivores. C) decomposer herbivores. D) detritus.
Biology & Microbiology