Knoblike sacs where the inner colon lining protrudes through the intestinal wall are called
a. diverticula.
b. ulcers.
c. haustra
d. sphincters.
e. appendices.
A
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Which of the following environmental factors generally do(es) not have an impact on the efficiency of an antimicrobial agent?
A. presence or absence of a biofilm B. concentration of organic matter C. refractive index D. pH
Which of the following statements is true of
metabolic pathways? a. They are enzyme-mediated sequences of reactions. b. They may be biosynthetic or degradative. c. Photosynthesis is a biosynthetic pathway. d. Catabolism is a degradative pathway. e. All of these are true.
Which of the following contributes to an erythrocyte's efficiency in distributing oxygen?
a. presence of mitochondria b. biconcave shape c. lobed nuclei d. granules e. extraordinarily large size
You are generally not aware of the texture of the cloth of your shirt as it rests on your shoulders, unless someone or something happens to make you think of it. What part of the brain is responsible for filtering out such stimuli?
A) reticular activating center B) cerebellum C) primary motor area D) postcentral gyrus