97.3k views
5 votes
I need help i cannot find the answer

I need help i cannot find the answer-example-1
User Vukung
by
4.3k points

1 Answer

7 votes

Answer:

down

Step-by-step explanation:

contracts and pulls down, which allows the lungs to expand and pull in air

User Neelay Srivastava
by
4.2k points