Which of the following statement about biofilms is false?
A. Biofilms in your body protect mucous membranes from harmful microbes
B. Biofilms on rocks provide food for animals
C. Compared to free-living bacteria, biofilms are more sensitive to antibiotics
D. Biofilms in pipes block the flow of water
E. Biofilms on medical implants cause infections
Answer: C. Compared to free-living bacteria, biofilms are more sensitive to antibiotics
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Dissolved oxygen is highest in which body of water?
a. warm eutrophic lake b. slow-moving tropical river c. pool within a cool forest stream d. white water stretch of a cold river e. dissolved oxygen should be the same in all waters
Animals that eat only plants are
A. omnivores. B. herbivores. C. carnivores. D. detritivores. E. insectivores.
Which of the following phyla contains animals that reproduce asexually?
A) Mollusca B) Cnidaria C) Chordata D) Nematoda E) Annelida
Mushrooms with gills are the fruiting bodies of members of the (Ascomycota/Basidiomycota/Deuteromycetes/Zygomycota).
Fill in the blank(s) with the appropriate word(s).