Which genus is the most common resident biota of mouth surfaces?

A. Haemophilus
B. Escherichia
C. Lactobacillus
D. Streptococcus
E. Mycobacterium


Answer: D

Biology & Microbiology

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Plants perform photosynthesis by using the

energy of ____ to power production of sugars from ____ and ____ molecules.

a. organic molecules; oxygen; water b. organic molecules; carbon dioxide; water c. sunlight; carbon dioxide and oxygen; water d. sunlight; oxygen; water e. sunlight; carbon dioxide; water

Biology & Microbiology

What is the purpose of molecular chaperones?

a. To transfer an amino acid b. To attach a carboxyl group c. To straighten other molecular proteins d. To strengthen the tertiary structure of a protein e. To assist the folding of other molecular proteins

Biology & Microbiology

The members of ________ include dinoflagellates, apicomplexans, and ciliates.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

The loss of genetic information no longer needed for an intracellular existence by an obligate parasite is called genomic ________.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology