Which bone withstands stresses of several tons per square inch?
a. tibia
b. femur
c. fibula
d. pubic
e. iliac
ANSWER: b
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At a family barbeque, you tell your family that you are taking microbiology this semester. Your aunt proceeds to gag and say how gross microbes are. How would you describe to your aunt three examples of human-associated microbes actually improving or maintaining human health?
What will be an ideal response?
You place equal numbers of dark and light varieties of feeder crickets into a terrarium containing a species of lizard
After two days, you notice that the dark variety of the crickets was less common than the light variety. What process is taking place on a small scale within the terrarium? Design an experiment in which you would try to determine if color or taste is the primary factor responsible for the selective feeding of the lizards. What will be an ideal response?
Which of the following plants contains nitrogen-fixing bacteria in its root nodules?
A) Potatoes B) Corn C) Oranges D) Tomatoes E) Soybeans
Poultry products are a likely source of infection by
A) Helicobacter pylori. B) Salmonella enterica. C) Vibrio cholerae. D) Shigella spp. E) Clostridium perfringens.