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In the process of peristalsis:a.
   waves of muscular contractions force food down the digestive tract.
  b. chemical digestion of food takes place in the digestive tract.
  c. food is discharged from the bodies of unicellular animals.
  d. digestion occurs intracellularly within food vacuoles.
  e. digestion of food takes place outside the body of an animal.

Question 2

Which statement about a complete digestive system is FALSE?
  a. It is characteristic of flatworms.
  b. It is a tube with two openings.
  c. Its regions are specialized to perform specific functions.
  d. Food can be ingested while previously eaten food is being digested.
  e. Food enters the mouth and is eliminated through the anus.

Answer to q. 1

a

Answer to q. 2

a