The diagram below shows stages in the life cycle of a parasite. Study it and…

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Animal Husbandry WAEC 2018

The diagram below shows stages in the life cycle of a parasite. Study it and answer question 20. 

Which of the following organisms serves as host to the parasite at the stage labelled I and II respectively ?

  • Snail, pig
  • Human, snail
  • Human, pig
  • Pig, Human checkmark

The correct answer is: D

Explanation

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