Which of the following is not correct concerning Legionnaires' disease?
a. cases have been traced to the fallout from the Mount Saint Helen's Volcano
b. symptoms include cough, diarrhea, and abdominal pain
c. L. pneumophila lives in close associations with free-living Amoebas
d. the disease is communicable from person-to-person
e. it is more common in males over 50 years of age
d. the disease is communicable from person-to-person
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Bacteria in our mouths feed off the sugars in foods that we eat. As these bacteria ferment the sugars, they generate a product that can cause dental cavities. What is this product?
A) Lactic acid B) Citric acid C) Acetyl CoA D) Hydrochloric acid E) Pyruvate
Which of the following relies on the wind for pollination?
A) Pine tree B) Stinking corpse lily C) Gardenia D) Tulip E) Magnolia tree
Smooth muscle tissue ____.
A. is found in the heart wall B. has parallel arrays of long cells C. is multinucleated D. contracts faster than skeletal muscle E. is found in the walls of soft internal organs
The spinal cavity and cranial cavity are the two parts of the:
A) skeletal system. B) ventral cavity. C) dorsal cavity. D) abdominopelvic cavity.