Remember, al living things must develope three vital functions on their own: interaction, nutrition and reproduction.
We are studying the second one, Nutrition.
Human beings need energy to work every day.
Nutrition includes these different processes: digestion, respiration, excretion and blood circulation.
Four systems work in harmony in our body to keep us healthy:
Four systems work in harmony in our body to keep us healthy:
DIGESTIVE SYSTEM, RESPIRATORY SYSTEM, CIRCULATORY SYSTEM AND EXCRETORY SYSTEM
