Which pathogen did Pasteur help treat by developing a vaccine against it?
a. Escherichia coli
b. influenza virus
c. Mycobacterium tuberculosis
d. rabies virus
Answer: D
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The term ____ refers to all the organisms, including plants and animals, living in a particular region
a. fauna b. biota c. flora d. population e. ecosystem
Rain shadows form on the leeward sides of mountain ranges
Indicate whether the statement is true or false.
Although prion infectious agents are more closely related to viruses than any other kind of infectious agents, there are still some major differences between the two. Which statement describes a major difference?
A. Viral infections can always be treated and cured, whereas prion diseases cannot. B. Viruses can be transmitted by animal to human or human to human, but prions are always human to human transmission. C. Prions are not destroyed by heat, but viruses can be inactivated by heat. D. Viruses do not contain protein, whereas prions do.
Which of the following statements about fungi is FALSE?
A) Fungi are eukaryotes. B) Molds are multicellular. C) Fungi have a cell wall. D) Fungi are photosynthetic. E) Yeasts are unicellular.