Habitats: Oral Microbiota
What will be an ideal response?
•A complex community that develops over time.
•~500 taxa present.
•Contains both aerobic and anaerobic members.
•Many bacteria don't attach directly to teeth, instead they form biofilms (i.e. plaque).
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The rickettsias can be cultured in
A) pure culture. B) artificial media. C) laboratory animals. D) pure culture, artificial media, and laboratory animals.
Which of the following statements about bacteria is false?
a. A small percentage of bacteria are pathogenic. b. Some bacteria can photosynthesize. c. Bacteria are important decomposers. d. Bacteria are not cellular and are sometimes not classified as life forms. e. Bacteria convert atmospheric nitrogen into ammonia and then nitrates that can be used by plants.
Since the chance of any one particular sperm fertilizing an egg is very low, large numbers of sperm are produced by the male reproductive system
Indicate whether the statement is true or false
What is one difference between the energy produced from the light bulb and the energy produced during the process of bioluminescent light production?
a. Less than 5% of the energy converted is lost as chemical energy during the process of bioluminescent light production. b. Less than 5% of the energy converted is lost as heat energy during the process of bioluminescent light production. c. The conversion of heat energy produced during the process of bioluminescent light production is very inefficient. d. The conversion of chemical energy produced during the process