Which structure controls the activity of all the others?
A) ovary
B) testis
C) hypothalamus
D) pituitary gland
C
Biology & Microbiology
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Which of the following areas of the human body is(are) not normally free of microorganisms?
A. Intestinal tract B. Eyes C. Respiratory tract D. All of the choices are correct.
Biology & Microbiology
Which heart valve is found on the right side of the heart?
a. vena cava valve b. aortic valve c. tricuspid valve d. bicuspid valve
Biology & Microbiology
Methanogens are classified as ____
a. photoautotrophs b. chemoautotrophs c. photoheterotrophs d. chemoheterotrophs e. chemotrophs
Biology & Microbiology
In lactate fermentation, ____ is converted into lactate
a. pyruvate b. acetaldehyde c. ethanol d. glucose e. NADH
Biology & Microbiology