What is DNA contains hereditary information
is found inside the nucleus
is made of four chemical bases
all of the above

Air goes past the epiglottis and into the trachea when you breathe in. from there, it goes to your vocal cords in the larynx until it reaches the bronchi. from the bronchi, air passes into each lung.

Olfactory epithelium i believe

Answerconsultation report, patient correspondence, and informed consent forms;

In my opinion its the second one.. hope it