Isolation of Gram-positive (bacilli/cocci/vibrios) from food suspected of being the source of an outbreak of diarrhea indicates the disease is the result of bacterial intoxication
What will be an ideal response?
cocci
Bloom's Taxonomy: Comprehension
Section: Bacterial Diseases of the Digestive System
Learning Outcome: 23.12
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Because they are morphologically simple, Psilotophyta (whisk ferns) have traditionally been thought to be a basal group in the radiation of land plants
Molecular phylogenies have challenged this hypothesis and support the alternative hypothesis that they_____. A) are the sister group to the seed plants B) represent a grade rather than a monophyletic group C) have lost complex structures in this lineage D) represent a lineage that forms a monophyletic group with Lycophyta
The most common causative agent of otitis media is ________.
A. Aspergillus fumigatus B. Streptococcus pneumoniae C. Candida albicans D. Haemophilus influenzae E. Corynebacterium diphtheriae
How do we perceive the pitch of sounds?
A) The hammer, anvil, and stirrup vibrate at different speeds. B) Different parts of the basilar membrane vibrate in response to different frequencies of sound. C) Rods vibrate in response to high-frequency sounds and cones respond to low-frequency sounds. D) The tympanic membrane vibrates more strongly at high frequencies. E) The pinna swivels in different directions in response to sounds of different frequency.
Penicillins and cephalosporins
A. block the peptidases that cross-link glycan molecules. B. attach to the 30S ribosomal subunit and disrupt protein synthesis. C. are metabolic analogs of PABA and block folic acid synthesis. D. damage cell membranes. E. interfere with DNA synthesis.