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Anim Richard Anim Richard
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4 years ago
Which of the following is involved in the body's secondary immune defence?


the acidity of stomach


the lysozyme


the complement system


the combination of digestive enzymes of the small intestine
Textbook 
Biology: Exploring the Diversity of Life

Biology: Exploring the Diversity of Life


Edition: 4th
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jas1215jas1215
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4 years ago
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