Page 135 - SUBSEC October 2017_Neat
P. 135
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[8 marks]
(c) A couple wants to have children but not immediately after marriage.
(i) For pregnancy to take place, fertilization must occur but the vagina is a hostile
environment for sperms. Explain how sperms overcome the structural and adverse
conditions to fertilize the egg.
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[7 marks]
(ii) Identify FOUR contraceptive methods that may be suitable for the couple, and
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using your knowledge of the human reproductive system, discuss the structural
and physiological means by which they prevent fertilization.
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