To be considered living, an organism must minimally consist of
A. atoms and molecules.
B. DNA and proteins.
C. one or more cells.
D. DNA and RNA.
E. RNA and proteins.
C. one or more cells.
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X-ray crystallography yields all of the following except:
A. a two-dimensional diffraction pattern. B. an initial protein model with the location of amino acid residues. C. a model structure created through refinement. D. information about the protein structure when in solution. E. information on the structure of the majority of characterized proteins.
Fungal infections are generally acquired via which route?
a. Person to person b. Nosocomial c. Vector d. Inhalation of spores
Life-long nonsmokers live an average of how much longer than those who in their mid-twenties
smoked two packs of cigarettes a day? a. 6 months b. 1 to 2 years c. 3 to 5 years d. 7 to 9 years e. over 12 years
Some animals acquire their toxic chemical compounds from plants that they consume
Indicate whether the statement is true or false