Dental caries in young children are associated with the presence of
a. Proprionibacterium.
b. Prevotella.
c. Actinomyces.
d. Porphyromonas.
Answer: C
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The enzyme formate dehydrogenase (FDH) splits formic acid to H2 and CO2 and is crucial to survival during fermentation because if fermentive intermediates were allowed to accumulate within the cell, the internal pH would become far too ________ to support viability.
A. alkaline B. hypotonic C. acidic D. hypertonic
Answer questions 72-76 using the five groups listed below:a
halophiles b. cyanobacteria c. thermophiles d. proteobacteria e. methanogens D 72. These bacteria live in temperatures that are not usually conducive to life. M 73. These produce CH4. D 74. These bacteria can live in water of very high salt concentration. M 75. These can form heterocysts, valuable in nitrogen fixation. M 76. These are the most diverse monophyletic group of bacteria.
Pattern baldness is determined by a single autosomal gene pair. When females are homozygous for this gene pair, can they show pattern baldness?
What will be an ideal response?
You pick up a vertebra to identify it and note that the transverse processes contain foramina. This unique feature identifies the vertebra as coming from the ________ region of the vertebral column.
Fill in the blank(s) with the appropriate word(s).