Which of the following statements about biofilms is FALSE?
A) Compared to free-living bacteria, biofilms are more sensitive to antibiotics.
B) Biofilms in pipes can block the flow of water.
C) Biofilms in your body protect mucous membranes from harmful microbes.
D) Biofilms on medical devices cause infections.
E) Biofilms on rocks provide food for animal life.
A
You might also like to view...
Match the following items with the correct phrases.
_______1. Mycoses are diagnosed in the ____________________ of the Clinical Microbiology Laboratory. _______2. Tuberculosis is diagnosed in the ____________________ of the Clinical Microbiology Laboratory. _______3. Hair clippings, nail clippings, and skin scrapings are most often processed in the ____________________ of the Clinical Microbiology Laboratory. _______4. Susceptibility testing is routinely performed only in the Bacteriology Section and the ____________________ of the Clinical Microbiology Laboratory. _______5. Miniaturized biochemical test systems—known as “minisystems”—are most often used in the ____________________ of the Clinical Microbiology Laboratory. a. Bacteriology Section b. Mycology Section c. Mycobacteriology Section d. Parasitology Section e. Virology Section
In Drosophila melanogaster, the gene for eye color is located on the X chromosome. The allele for red eye color
(Xw+) is dominant over the allele for white eye color (Xw). You examine a vial of 100 flies that are all offspring from a single genetic cross. You find only red-eyed females and red-eyed males present. Flies from the vial were allowed to interbreed, and in the next generation you find only red-eyed females, but you find both red-eyed and white-eyed males. The genotypes of the original parents were ____.
a. Xw+Xw+; XwY b. Xw+Xw; XwY c. XwXw; Xw+Y d. Xw+Xw; Xw+Y e. XwXw; XwY
You have type O blood (genotype ii). Who can you donate blood to in an emergency?
a. type O only b. type B only c. type A only d. type AB only e. types A, B, AB, and O
Which of the following is the part of the chordate digestive system just posterior to the mouth?
a. pharynx b. neural crest c. oral hood d. notochord e. cranium