15.
In order to detect uncommon species of mosquitoes, which are attracted to Iight,
Iight traps should be operated:
a. Two nights a week.
I
b. Three to four nights a week.
c.
Five to six nights a week.
d. Seven nights a week.
16.
The status of the fly population as compared with previous surveys can be
maintained on a:
a. Tape recorder.
b. Bar graph.
c.
Note pad. ,
d. Bathroom wall.
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MD0170
3-30