Sagot :
When you breathe in or inhale the diaphragm muscle contracts when you breathe out or exhale.
exhale the diaphragm muscles relaxes (yan po yung continuation)
exhale the diaphragm muscles relaxes (yan po yung continuation)
breathing,when you inhale air(oxygen) enter your system when you exhale carbon dioxide comes out of your system.grade 9 ka po? same question yan sa amin group act.eh. ;)