1. The functions of the respiratory system are (select all that apply)

A. to pump blood to your body
B. to deliver oxygen to the body
C. to remove carbon dioxide from the body
D. to absorb nutrients

2. The dome-shaped muscle that lies below the lungs and is important in the breathing process is the
A. alveoli
B. asthma
C. bronchi
D. diaphragm

3. The exchange of carbon dioxide and oxygen takes place in the
A. alveoli
B. asthma
C. bronchi
D. diaphragm

4. ____ is a substance in tobacco products that causes stained teeth and skin
A. nicotine
B. carbon monoxide
C. tar
D. menthol
5. ____ is a substance in tobacco smoke that reduces the blood's ability to carry oxygen
a. tar
b. nicotine
c. asthma
d. carbon monoxide

Answers are B and C, D, A, C, and D. Just took the quiz.

1. B and C

2. D
3. A
4. C
5. D

i know we should be doing our work on our own, but some people like me don't understand or really know health well. maybe next time, tell the student whoever is in need for the answers, maybe give them a helpful website to make them get the answers plus learn new things.

I agree with Mackenzie

Wow very helpful. At least offer a website or something.

@Grace Thanks so much! I passed the quiz!

Omg looks like im going to have to set this straight too huh? Well #1 the teachers know about this site so no need to call people cheaters.#2 if ur not a cheater than get of and dont get back on.so if your on here saying people are cheaters your are too because your on here!and last but not least #3 stop trying to shame people for getting help its nobody fault that people wanna give answers and help people just accept it and move on and go about your business. If you stop for a minute to take a look at my comment thanks and this is for all the people that call people cheaters don't for get to look at the steps.

thank you grace!!!!! you helped me too! i answered the questions on my own and then checked my answers with urs and got a 100!!!!!

Thanks grace, got 100%.

Lesson 2: The Respiratory System

Health and Physical Education 7 Unit 5: Tobacco

1:B,C
2:D
3:A
4:C
5:D

CONNEXUS 7 GRADE
ALL ANSWER CORRECT