How do dental lactic acid bacteria cause dental caries?
What will be an ideal response?
Answer: Lactic acid bacteria ferment sugars in the diet to lactic acid that dissolves some of the calcium phosphate in localized areas, and the proteolysis of the supporting matrix occurs through the action of bacterial proteoloytic enzymes. Bacterial cells slowly penetrate into the decomposing matrix.
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Viruses:
a. Consist of only a single cell b. Are smaller than cells c. Consist of multiple cells d. Contain a nucleus e. Contain ribosomes
Maxillae are used to bite and grind food
____________________ Indicate whether the statement is true or false.
Ureaplasma urealyticum generates an electrochemical gradient, despite the absence of an electron transport chain, by synthesizing urea from ammonia/ammonium to generate chemiosmotic potentials.
Answer the following statement true (T) or false (F)
Which of the following is an advantage of the biological species concept over other common species concepts?
a. It can be applied to both plants and animals. b. It does not require a subjective partitioning of species. c. It can be applied to fossils. d. It takes into account all aspects of a species niche. e. All of the listed responses are correct.