An ecosystem includes ________ along with ________.

An ecosystem includes ________ along with ________.
 
  A) macroorganisms / microorganisms
  B) living organisms / their chemical and physical environments
  C) pathogenic organisms / non-pathogenic organisms
  D) single celled organisms / multi-cellular organisms

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Bacillus anthracis deficient in its ability to differentiate would not be able to
 
  A) chemotax towards growth substrates.
  B) create vessicles.
  C) form endospores.
  D) grow without additional supplemented nutrients.

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Cyanobacteria and purple bacteria both obtain energy from light. However, only the ________ are capable of releasing ________.
 
  A) cyanobacteria / organic compounds
  B) cyanobacteria / oxygen
  C) purple bacteria / organic compounds
  D) purple bacteria / oxygen

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The process whereby microorganisms are used to help clean up pollution created by human activities is known as
 
  A) bioaugmentation.
  B) biodegradation.
  C) bioengineering.
  D) bioremediation.

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Some microorganisms can undergo ________ in which various cell types can become specialized and arise from one parent cell type.
 
  A) differentiation
  B) genetic exchange
  C) maturation
  D) mutagensis