7. What are the three main
components of this system?
A. __________________
B. __________________
C. __________________
8. small intestine mouth stomach digestion large intestine
saliva gastric juices egestion
nutrients
• __________________ starts when food enters the
_________________. ___________________ starts with
the help of teeth and _____________________. When
the food reaches the ________________, it mixes with
______________________.
• Then, in the ____________________, the
______________________ are absorbed. Finally, waste
is eliminated through the ____________________ in
the process called _______________________.
Digestive process
9. alveoli bronchi nasal passages lungs bronchial tubes
trachea pharinx
oxygen air carbon dioxide
__________________ enters through the
_____________________ and passes through the
__________________ and ___________________.
Then, it enters the __________________ and goes to
the ____________________ and ___________________.
Finally, gas exchange occurs in the
_________________ where ___________________ is
changed to _____________________.
Respiratory process
