Paper 1, May June 2006 | Cambridge AS - A Level Biology (9700) Past Papers
Cambridge
AS & A Level
Biology (9700)
شهریور
2006
مشاهده نمونه سوال
شامل مباحث:
AS Level
تعداد سوالات: 40
سطح دشواری:
متوسط
شروع:
آزاد
پایان:
آزاد
مدت پاسخگویی:
60 دقیقه
پیش نمایش صفحه اول فایل
Neda Bani Why is it difficult to control the spread of measles?
1) Global air travel for commerce and tourism has increased.
2) The virus that causes measles rapidly evolves resistance to antibiotics.
3) The virus that causes measles shows great antigenic variability.
4) Civil unrest and poverty result in overcrowded living conditions.
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