Test 1. Fill in the blank.

1. The air flows into the_____

2. Known as the voice box.________

3.Made up of primary secondary tubes.________

4.It is made up of cartilage, which
stretches when you shout.________

5. movement of air into and out of the
lungs.________

6.exchange of gases between the blood
and body cells.________

7. Transport of oxygen to body cells and
collection of________

8. ________enters the insect's body
through spiracles.

9. The ________contracts and relaxes,
breathing takes place.

10. ________or air -filled sacs, are
surrounded by capillaries

11.Involves the exchange O2 and CO2
between the environment and the
organisms.________

12. Heart is divided how many chamber?________

13.An active process that starts with
contraction of the diaphragm________

14.Cellular respiration takes place in the________

15.________
diffuses into cells to
be used in cellular respiration