All of the following are true of acute necrotizing ulcerative gingivitis (ANUG) except that it
A. is associated with severe pain, bleeding, pseudomembranes, and necrosis.
B. is highly contagious.
C. is common in AIDS patients.
D. involves Treponema vincentii, Prevotella intermedia, and Fusobacterium.
E. is due to poor oral hygiene, altered host defenses, or prior gum disease.
Answer: B
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develop as deuterostomes. b. fall within the group Bilateria. c. show evidence of segmentation. d. fall on the eumetazoan branch of animals. e. fall within the group Deuterostomia.
If a changing environment increases rates of evolution, why do we see an increase in extinction rates following rapid global catastrophes?
What will be an ideal response?
Which of the following are all monosaccharides?
a. glucose, fructose, and galactose b. glycogen and glucose c. starch, cellulose, and glycogen d. glucose and maltose e. fructuse and cellulose
Which of the following is involved in translation?
A) rRNA only B) tRNA only C) mRNA only D) both mRNA and tRNA E) mRNA, rRNA, and tRNA are all involved.