With what topics is the passage primarily concerned?  
A. Colonies of protozoans
B.  Mastigophora
C.  Motility in protozoans
D.  Characteristic of protozoans

The word minute in paragraph 1 could best be replaced by
A.  very common C.  very old
B.  very fast D.  very small

What is protoplasm?
A. A class of protozoan
B.  The substance that forms the cell of a protozoan
C.  A primitive animal similar to a protozoan
D.  An animal that develop from a protozoan


What does the author mean by the statement They are fantastically diverse, but three major groups may be identified on the basis of their motility?

A. The three major groups are unique in that they all move in the same manner.
B. Everything we know about the protozoans is tied into their manner of movement.
C.  The manner of movement is critical when classifying the three major groups of protozoan.
D.  Mobility in the protozoan is insignificant.



To which class of protozoans do the amoebae belong?

A. Mastigophora
B.  Ciliata
C.  Sarcodina 
D.  Motility


What is the purpose of the large nucleus in the Ciliata?

A.  It  generates the other nucleus.
B.  It contains the genetic code for the small nucleus.
C.  It regulates growth.
D.  It reproduces itself.

Why are protozoans classified as animals?

A. They do not live on simple organic compounds.
B.  They collect in colonies.
C.  They respond uniformly to outside stimulate.
D.  They may have more than one cell.


The word they in paragraph 3 refers to  

A.  protozoans
B.  microscope
C.  investigations
D.  Colonies

Which of the following statements is NOT true of protozoans?

A. There are approximately 40,000 species.
B.  They are the most primitive forms of animal life.
C.  They have a large cell and a smaller cell.
D.  They are difficult to observe.