IGCSE Biology 20.2 Habitat destruction - Assignment: extra practice
Human Influences on Ecosystems
Practise with purpose
Marked topic quizzes and past paper questions for every syllabus unit. Answer one question at a time and review your result.
IGCSE Biology 19.4 Populations - Assignment: extra practice
Organisms and their Environment
IGCSE Biology 19.3 The nitrogen cycle - Assignment: extra practice
Organisms and their Environment
IGCSE Biology 19.2 Food chains, food webs and pyramids - Assignment: extra practice
Organisms and their Environment
IGCSE Biology 19.1 Energy flow and consumers - Assignment: extra practice
Organisms and their Environment
IGCSE Biology 18.2 Adaptive features - Assignment: extra practice
Variation and Selection
IGCSE Biology 18.1 Continuous and discontinuous variation - Assignment: extra practice
Variation and Selection
IGCSE Biology 14.2 Sense organs (EYE) - Assignment: extra practice
Coordination and Response
IGCSE Biology 13.3 Glomerulus, Nephrone - Assignment: extra practice
Excretion in Humans