Activities
Virus structure & function (2025)
Although made of simple molecular components viruses are highly diverse in their shape and structure. Viruses are not considered living organisms, because they rely on a host cell for energy supply, protein...
Blog
Richard Scarr Free
It is with great sadness that we have to announce the passing of Richard Scarr. He was always an enthusiastic biologist and a dedicated educator. After reading Biology at Kings College in London he taught...
Teaching resources for Biology
Molecules level resources (A1,B1,C1,D1)
The Molecules level covers a range of concept from types of bonding to giant metabolic pathways. Planning sheet for topic A1.1 Water Theme A - Unity and diversity & Level of Organisation: Level 1 -...
Teaching resources for Biology
Ecosystem level resources (A4,B4,C4,D4)
The Ecosystems level is the one which is largest in scale so it's logical that it contains, organisms, cells and molecules. Connections from these topic are numerous to other topics. Here are a few suggestions....
Teaching resources for Biology
Organisms level resources (A3,B3,C3,D3)
The Organisms level makes an obvious connection as many topics have something about cells or molecules in them, but in addition to this several concepts link topics together. Planning sheet for topic...
Teaching resources for Biology
Cells level resources (A2,B2,C2,D2)
The Cells level makes an obvious connection as many topics have something about cells in them, but in addition to this several concepts link topics together. Planning sheet for A2.1 Origins of cellsTheme...
Teaching resources for Biology
A1.2 Nucleic acids - Planning sheet
Planning sheet for topic A1.2 Nucleic acids Theme A - Unity and diversity & Level of Organisation: Molecules This topic is all about the structure of DNA and RNA and the features of these molecules that...
Assessment - introduction
B4.1 Adaptation to environment - model answers
These are suggested model answers for the topic B4.1 Adaptation to environment. As model answers they don't cover all the possible options for correct responses, but they provide a very good guide for...
Assessment - introduction
B4.1 Adaptation to environment - topic test
This test contains the following questions: B4.1 Adaptation to environment topic test - IB style questions . There is a set of model answers / mark scheme here: B4.1 Adaptation to environment - model...
Assessment - introduction
D4.3 Climate change - model answers
These are suggested model answers for the topic D4.3 Climate change As model answers they don't cover all the possible options for correct responses, but they provide a very good guide for students seeking...