Answer the following questions true (T) or false (F)
1. A pathogen will always use the same portal for both entry and exit.
2. While a reservoir can be a source of infection, not all sources of infection are reservoirs.
3. Members of the genus Vibrio, which includes the species which cause cholera are found in marine environments. However, most cases of cholera occur when people drink water that has been contaminated with feces from other humans with cholera. If an effective vaccine against cholera were developed so that humans would become immune to the disease, both the reservoir and the source of the cholera bacteria would be eliminated.
1. FALSE
2. TRUE
3. FALSE
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The bone of the upper arm is the
a. radius. b. ulna. c. tibia. d. humerus. e. femur.
Which bone is your shin bone?
a. femur b. fibula c. tibia d. patella e. tarsal
Which organism would be found exclusively in the benthic environment?
a. painted turtles b. pond snail c. bur-reeds d. cattails e. bloodworms
Which statement is FALSE regarding science?
(a). Science helps us to understand the natural world. (b). Science strives to be objective rather than subjective. (c). Correct scientific conclusions are permanent and never subject to change or refinement. (d). Information is gathered by scientific methods. (e). Information is gathered by scientific methods.