The type(s) of bond produced when atoms share electrons equally is/are :

The type(s) of bond produced when atoms share electrons equally is/are
 
  A) a nonpolar covalent bond.
  B) a hydrogen bond.
  C) an ionic bond.
  D) a polar covalent bond.
  E) both polar covalent and ionic bonds.

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Bacterial ________ are sites of metabolite storage.
 
  A) nucleoids
  B) vacuoles
  C) inclusions
  D) pili
  E) periplasm

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The valence of an atom represents its
 
  A) ability to interact with other atoms.
  B) electronegativity.
  C) radioactivity.
  D) ability to attract electrons.
  E) ability to interact with water.

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Endospores survive a variety of harsh conditions in part because of the presence of
 
  A) mycolic acid.
  B) lipopolysaccharide.
  C) hopanoids.
  D) dipicolinic acid.
  E) glycoproteins.

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Which parts of the atoms interact in a chemical reaction?
 
  A) protons
  B) neutrons
  C) ions
  D) electrons
  E) isotopes