Question

Fill ups......
1.energy is not released in............
2.during respiration, energy is released in the form of........
3.breathing rate is...............during an exercise.
4.the human lungs are protected by a flexible............
5.cellular respiration that uses oxygen is called........

Answer 1

1)carbondioxide2)exhalation4)ribs

Answer 2

Answer:

1. Physical change

2. Heat

3. faster

4. Ribcage

5. Aerobic respiration