Globally, 80% of all infectious diseases are caused by ________
A) HIV/AIDS
B) avian and swine influenza viruses
C) mosquito-borne pathogens
D) tick-borne pathogens
E) water-borne diarrheal pathogens
Answer: E
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A balloon charged to several thousand volts normally has a relatively small amount of
A. energy. B. charge. C. both of these D. none of the above
What is an invertebrate chordate?
a. A chordate that has lost its gill slits b. A chordate with an underdeveloped dorsal nerve system c. A chordate that has lost its notochord d. A chordate that has a backbone e. A chordate that evolved to become an invertebrate
The primary difference between renewable resources and nonrenewable resources is ____.
A. how easily each can be discovered B. the available amount of each resource C. the length of time it takes for each to be replenished D. how fast each is being consumed E. how quickly each can produce electricity
All needleleaf trees are evergreen
Indicate whether the statement is true or false