O Level Biology Practice Books of Diagrams 209

• Labeling
• Drawing
• Annotation
• Analysis
• Interpretation

TOPIC 1 CELL STRUCTURE AND ORGANISATION
ANSWER KEY

TOPIC 2 DIFFUSION, OSMOSIS AND ACTIVE TRANSPORT
ANSWER KEY

TOPIC 3 ENZYMES
ANSWER KEY

TOPIC 4A NUTRITION
ANSWER KEY

TOPIC 4B NUTRITION IN ANIMALS
ANSWER KEY

TOPIC 5 NUTRITION IN PLANTS
ANSWER KEY

TOPIC 6 TRANSPORT IN PLANTS
ANSWER KEY

TOPIC 7 TRANSPORT IN HUMANS
ANSWER KEY

TOPIC 8 RESPIRATION
ANSWER KEY

TOPIC 9 EXCRETION
ANSWER KEY

TOPIC 10 HOMEOSTASIS
ANSWER KEY

TOPIC 11A NERVOUS SYSTEM
ANSWER KEY

TOPIC 11B EYE
ANSWER KEY

TOPIC 12 SUPPORT, MOVEMENT AMD LOCOMOTION
ANSWER KEY

TOPIC 13 MICROORGANISMS
ANSWER KEY

TOPIC 14A HUMANS IMPACT ON ECOSYSTEM
ANSWER KEY

TOPIC 14B  HUMANS IMPACT ON ECOSYSTEM
ANSWER KEY

TOPIC 15 REPRODUCTION IN PLANTS
ANSWER KEY

TOPIC 16 REPRODUCTION IN HUMANS
ANSWER KEY

TOPIC 17 INHERITANCE
ANSWER KEY