L8 Explanation&the Methodology The mixing of X and Y exerts a powerful effect upon Z through...... This suggests a weak link may exist between X and Y. The human papilloma virus is linked to most cervical cancer. Stomach cancer in many cases may be associated with certain bacterial infections. A high consumption of seafood could be associated with infertility. 10/10L8 Explanation & the Methodology 10 / 10 The mixing of X and Y exerts a powerful ef ect upon Z through …… This suggests a weak link may exist between X and Y. The human papilloma virus is linked to most cervical cancer. Stomach cancer in many cases may be associated with certain bacterial infections. A high consumption of seafood could be associated with infertility