How can we expel things from our respiratory tract? &

In regards to acetyl coa in the tca/kreb's cycle: how many cycles minimum would it take for an acetyl coa carbon to be removed? (what is the first step that this removal could happen? why can't we know for sure how many turns it takes?

After examining mohammad and ordering and reviewing the results of an ecg test, dr. williams indicates that mohammad’s heart appears to be normal. what factors might be contributing to mohammad’s episodes of tachycardia?

Which of the following is the correct definition for veins?