Question: 7. Microorganisms that show optimal growth in moderate temperatures (between 25 C and 40 C) are called a. thermophiles. b. psychrophiles. c. mesophiles. d. psychrotrophs.

7. Microorganisms that show optimal growth in moderate temperatures (between 25° C and 40° C) are called
a. thermophiles.
b. psychrophiles.
c. mesophiles.
d. psychrotrophs.

8. Psychrophiles are also referred to as
a. cryophiles.
b. thermophiles.
c. mesophiles.
d. psychrotrophs.

9. Which of the following organisms is a common cause of peptic ulcers?
a. Treponema pallidum
b. Vibrio cholerae
c. Helicobacter pylori
d. Escherichia coli

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