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1. 
__________________ starts in the mouth.
A.
Digestion
B.
Ingestion
C.
Absorption
D.
Elimination
2. 
The Digestive System is in charge of:
A.
Delivering oxygen to the body and take away corbon dioxide.
B.
Breaking down food into energy and basics nutrients
C.
Transporting food, water and oxygen to the body.
D.
The elimination of wastes
3. 
The respiratory system allows:
A.
The elimination of wastes
B.
To break down food into energy and basics nutrients
C.
To transport food, water and oxygen into energy.
D.
To deliver oxygen to the body and take away Carbon Dioxide.
4. 
The absorption begins:
A.
In the mouth
B.
In the small intestine
C.
In the pharynx
D.
In the stomach
5. 
The esophagus, stomach and small intestine are some important organs of:
A.
Digestive system
B.
Respiratory system
C.
Circulatory system
D.
Elimination
6. 
_____________________ carries the food to the stomach
A.
Pancreas
B.
Liver
C.
The esophagus
D.
The mouth
7. 
In the _______________________ the oxygen is taken and the carbon dioxide is breathed out.
A.
Lungs
B.
Pancreas
C.
Esophagus
D.
Liver
8. 
The gaseous exchange is in:
A.
The esophagus
B.
The stomach
C.
The mouth
D.
The alveolus
9. 
Bronchi, trachea, lungs are part of the:
A.
Digestive system
B.
Respiratory system
C.
Circulatory system
D.
Eating
10. 
Mechanical digestion begins:
A.
In the stomach
B.
In the small intestine
C.
Pancreas
D.
In the mouth
11. 
Chemical digestion begins:
A.
When the food enters and encounters saliva
B.
When the food goes to the stomach
C.
When the food goes through the esophagus
D.
When the air enters to the body
12. 
Everything we eat is completely digested and used by our body
A.
False
B.
True
13. 
The job of the digestive system is to break food down so our body can use it
A.
False
B.
True