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  9. Q2
Question 2

Viruses are economically important because they

  • A.do not have cell structures
  • B.can only reproduce inside living cells.
  • C.cause diseases in plants and animals
  • D.exist as crystals outside living cells
Objective

Question details

Exam body
WAEC
Subject
Biology
Year
2009
Question no.
#2
Type
Objective
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