_______ is a substance in tobacco products that causes stained teeth and skin.
(1 point)
Responses
Nicotine
Nicotine
Carbon monoxide
Carbon monoxide
Tar
Tar
Menthol
Menthol
Tar
Carbon monoxide
____________ is a substance in tobacco smoke that reduces the blood’s ability to carry oxygen.
(1 point)
Responses
Tar
Tar
Nicotine
Nicotine
Asthma
Asthma
Carbon monoxide
The functions of the respiratory system are (Select all that apply)
(1 point)
Responses
to pump blood to the body.
to pump blood to the body.
to deliver oxygen to the body.
to deliver oxygen to the body.
to remove carbon dioxide from the body.
to remove carbon dioxide from the body.
to absorb nutrients.
(Chose the right answers)
to deliver oxygen to the body.
to remove carbon dioxide from the body.