Introduction and levels of biological organization
Origin of life, cell, and energy transformation
2.1 Chemical basis of life
2.2 The biological molecules
2.3 The cell structure and function
2.4 Energy transformation
2.5 The type and size of cells
2.6 Animal tissue and organization
Unit 3 (11 h) Maintenance of life
3.1 Internal transport : circulatory system
3.2 Obtaining and digesting of food: digestive system
3.3 Gas exchange: respiratory system
3.4 Excretory system
3.5 Chemical control: endocrine system
3.6 Nervous system and the senses organ
3.7 The control of internal environment and homeostasis
3.8 Animal locomotion