Energy flow, food chains and food webs — Cambridge IGCSE Biology
How energy flows from the Sun through producers, consumers and decomposers to the environment, and how food chains and webs show feeding links.
Revision notes
3 short notes, in the order of the specification.
Start readingExam questions
7 exam-style questions (19 marks), each with its mark scheme.
Answer the questionsFlashcards
13 cards: flip them, mark what you knew, and practise the rest.
Practise the cardsMind map
The whole of organisms and their environment on one page, so you can see where this subtopic fits.
Open the mind mapPrint it
Free PDFs to print or save.