9700/13 Biology Oct Nov 2012 Online Test | Cambridge AS and A Level MCQ
Cambridge
AS & A Level
Biology (9700)
بهمن
2012
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
The diagram shows some values for gross primary productivity (GPP) and energy flow in an ecosystem, measured in $kJ{m^{-2}}{y^{-1}}$.
What percentage of GPP in the producers can be transferred to the tertiary consumers?