3 eso Biology And Geology (Ara) 22

HUMAN BEINGS AND HEALTH
Scientific work
1.1. The work of scientists
Human beings and health
1.2. The organisation of the human body: much more than cells
1.3. Health: a question of balance
1.4. The immune system: how does our body defend itself?
Food and diet
1.5. Eating well to improve your health
1.6. Good nutritional health!
VITAL FUNCTIONS
Nutrition: digestive and respiratory systems
2.1. The digestive system transforms food
2.2. How does oxygen get to your cells? The respiratory system
Nutrition, circulatory and excretory systems
2.3. The transport of nutrients: the circulatory system
2.4. The elimination of waste : the excretory system
The interaction function: nervous and endocrine system
2.5. The nervous system: your body´s control centre
2.6. Hormonal regulation : The endocrine system
2.7. Healthy habits and mental health
The interaction function: the senses and the locomotor system
2.8. How does your body sense things?
2.9. How do you move? Discover the locomotor system
Reproduction
2.10. The reproductive system
2.11. Sexual health
THE ENVIRONMENT
Ecosystems
3.1. Characteristics of ecosystems
3.2. Diversity among ecosystems
3.3. The impact of human activities on ecosystems
 

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