Populations — Cambridge IGCSE Biology
Populations, communities and ecosystems, the factors that affect population growth, and the phases of the sigmoid growth curve.
Revision notes
2 short notes, in the order of the specification.
Start readingExam questions
6 exam-style questions (21 marks), each with its mark scheme.
Answer the questionsFlashcards
10 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.