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IB Approved Workshops
Biology (New Syllabus)
IB DP Category 2
Berlin, Germany, 23 - 25 August 2024
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Biology (New Syllabus)
IB DP Category 1
Online (IB Approved), 25 - 27 October 2024
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Quote of the day
Everything that human beings or living animals do is done by protein molecules. And therefore the kind of proteins that one has and therefore the ability one has is determined by the genes that one has.
Har Gobind Khorana, 1922 – 2011 Molecular Biologist
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I love the topic quizzes... so very helpful!!
Emma Nason
KAUST schools (Saudi Arabia)
Subscriber commentsSee all
- Dear Richard, thank you for your reply and the clarification. It helps a lot!
- FrancescaThank you for pointing this out. There are some, I believe marine, inverted pyramids of biomass.I will ask David to edit the question to:Which of the following normally decrease at the stage in the food chain from producer to primary...
- Hi, in question number 3 biomass does not necessarily decrease since in some aquatic system it increses. I am confused, Can you explain? Thank you
- Any updates on the rest of D and inheritance please?