Question

which of the following is not a function of hormones? responding to external stimuli regulating growth, development, and behavior maintaining homeostasis exchanging oxygen and carbon dioxide between the air and the lungs

Answer 1

It's no exchanging Oxygen and Carbon Dioxide.
That does not have anything to do with hormones. That is a different part of you body's job.

Answer 2

Not a function of hormones is exchanging oxygen & carbon dioxide between the air and lungs.
That's a different body function.