Organisms that grow near deep-sea volcanic vents are likely to be
A. picrophilic.
B. alkylophilic.
C. barophilic or barotolerant.
D. acidophilic.
Answer: C
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What guides the production of a multi-celled
organism?
a. the sequence of nucleotide bases in DNA b. the sequence of amino acids in a protein c. the sequence of fatty acids in a triglyceride d. the sequence of nucleotides in RNA e. the sequence of monosaccharides in a polysaccharide
Which of the following statements is false?
a. Enzymes catalyze reversible reactions in either direction. b. Enzymes are highly specific. c. Most enzymes are protein molecules. d. Enzymes allow some reactions to occur that would never occur without them. e. Enzymes may be temporarily modified during their involvement with the substrate.
Rabbits and rodents are the chief reservoirs of the causative agent of ________.
A. brucellosis B. plague C. Lyme disease D. tularemia E. mononucleosis
All of the following contribute to a pathogen's invasiveness EXCEPT
A) toxins. B) capsules. C) cell wall components. D) hyaluronidase. E) coagulases.