Question

Which of these are functions of the respiratory system?

Choose 2 correct answers.
Acts as a barrier to pathogens
Releases hormones
Allows for the breathing in of oxygen
Removes carbon dioxide from the body

Answer 1

Allows for the breathing in of oxygen

Removes carbon dioxide from the body

Answer 2

Allows for the breathing in of oxygen. Removes carbon dioxide from the body.

Step-by-step explanation:

When you inhale in you get oxygen from the air and it goes into your blood. Right at the same time carbon dioxide comes out of your blood into, goes into your lungs and gets exhaled.