Answer: Tidaling
Explanation:
It is rise and fall of water in water-seal chamber, used to determine the degree of re expansion of the lungs. It reduction shows the lungs reexpands.
However, with respiratory efforts it is normal.
When we inhale, we take in oxygen, and give out carbon dioxide when we exhale. The carbon dioxide we breathe out/exhales enters the atmosphere.
The answer is A heterotrophic.
Answer:
I say c
Explanation:
seems really along with the question unlike b but could also be d