NUTRITION
by Verónica Leiva Bezanilla
1. Excretory system
1.1. Excretes waste products in the blood as urine.
2. Respiratory system
2.1. Takes oxygen from the air and sends it to our blood.
3. Circulatory system
3.1. Blood carries and delivers oxygen and nutrients our body needs.
4. Digestive system
4.1. Processes food we eat to obtain nutrients.
