9700/13 Biology Oct Nov 2011 Online Test | Cambridge AS and A Level MCQ
Cambridge
AS & A Level
Biology (9700)
بهمن
2011
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 The growth of crop plants is often limited by the availability of nitrogen in the soil.
The graph shows the results of an investigation into the yield of a crop plant, with increasing levels of nitrogen supplied.
Which of the following best explains the shape of this curve?
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