_______ is a substance in tobacco products that causes stained teeth and skin.

Question

(1 point)
Responses

Nicotine
Nicotine

Carbon monoxide
Carbon monoxide

Tar
Tar

Menthol
Menthol

Answer 1

Tar

Answer 2

____________ 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

Answer 3

Carbon monoxide

Answer 4

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)

Answer 5

to deliver oxygen to the body.
to remove carbon dioxide from the body.