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

THANKS GRACE GOT A 100%!!!!

@Not inportant You're obviously cheating because my question is how did you get to this page? You obviously got to this page by looking up the same question so your statement is quite dumb.

Thanks Grace! I got an 100%

THANKS GRACE!!!! TOKE QUIZ!! 100%!!!

thanks graceeeee !!

@Baby Cakes, most people came here to check their answers. Including me. Also, teachers don't know about this site and if they did they would have blocked it for all of the students. I came here with my answers and I wanted to see how well I would have done and what I got wrong, and why. I used to put up these questions or quizzes here hoping people would respond to me and I cheated but I actually started to read through my lessons because I was failing and got help from my teachers and now I'm getting B's. Not D's and F's. So I'm %100 positive the person who posted this and people who are just giving away the answers could do the same. Here are the explanations for the answers (Write it down in your notes maybe):

1-B,C: The respiratory system does two very important things: it brings oxygen into our bodies, which we need for our cells to live and function properly; and it helps us get rid of carbon dioxide, which is a waste product of cellular function.

2-D: The diaphragm is a thin skeletal muscle that sits at the base of the chest and separates the abdomen from the chest. It contracts and flattens when you inhale. This creates a vacuum effect that pulls air into the lungs. When you exhale, the diaphragm relaxes and the air is pushed out of lungs.

3-A: Through the very thin walls of the alveoli, oxygen from the air passes to the surrounding capillaries (blood vessels). A red blood cell protein called hemoglobin helps move oxygen from the air sacs to the blood. At the same time, carbon dioxide moves from the capillaries into the air sacs.

4-C: The main components in cigarettes are chemicals known as tar and nicotine. Regular cigarette smoking will eventually cause tar stains and residual buildup on your teeth, which is why many cigarette smokers have yellow-stained teeth.

5-D: A smoker's level of CO varies according to the time of day, the number of tobacco products smoked and how the smoke is inhaled. ... Carbon Monoxide enters the blood from the lungs and combines with hemoglobin, blocking the blood's ability to carry oxygen to body cells.

Hopefully this helped :) <3

thz

grace is correct

people can get help it's not a problem so just shut up... anyway the answers are

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

got 100 percent !!

Hey some people like me come here to check my answers so dont judge a book by its cover

@notinportant ok, so stop telling us we are cheating, i guess because we go on a site for help, it means we are cheating, well i guess your cheating too! And it isnt are fault that some people are nice enough, and waste their time, to type in all the answers! And apparently you clearly need help with your spelling, so i guess on this site, go and "cheat" by learning how to spell! And yes ik, this was all in like 2015, but it gets on my nerves when ppl do this! anyways thank you!

@grace thank you so much i needed that!

Thanks Grace 100%

1. B and C
2. D
3. A
4. C
5. D

I agree with baby cakes, but I disagree with one thing they said ( I said they because Idk if its boy or girl). So when they said if you are not a cheater, then don't come back/get back on, some people look up questions similar to their own to check their answers, even if you could ask an adult that you live with to help check your answers, yeah you could do that, but most of the time they are busy and I know how that is because I have a parent that is always busy and already has a lot on their plate, so when I know I can't ask to get my answers checked, I do one thing any person could do, do it on my own. Also at the same time, you could check your answers by going back in your lesson and look for the key sentences that relate to the questions on the quiz.

wht they said ^^

Thx

Here are the correct answers:

1. B & C
2. D
3. A
4. C
5. D

You are all welcome! Have an amazing day!

@baby cakes:

*thumbsup*

I like how @not inportant has the nerve to say we are all cheating and we should ask out teachers for help and stuff but he/she apparently cant even spell important correctly, anyways thanks to the people who gave us the answers I got 100% on my quiz!

Shut up @NotImportant. Just be grateful you get 100% you little scum

yeah yeah it does look it up

hom tanks is correct

this web site is ware people go when they have tryed there best and still do not get it or when they just need there answers checked so they do not get and F

B.C

D
A
C
D
and @not inportant piss off, please just go. no one cares, it's not cheating I'm checking my answers just to make sure there right

I dont have 5 questions..

@notInportant Why are you on here if your calling us cheaters most of us are probably checking their work.

If i made any grammar mistakes I am sorry I was just really mad.

no it does not

The respitory system

Thx

Thanks everyone

Thanks for the help, I woulld of had 2 wrong

thx grace and jack

I also agree with Mark too

You're so right! Thanks for the answers too!

GRACE IS RIGHT JUST TOOK THE QUIZ AND GOT 6/6 100%

Yeah... this is awkward... thx tho

mackenzie that is what your teachers are for i have been in that place and i know what it feels like too but if you are in desperate need for help ask your teachers! that's what they're there for they will help you if you don't ask or you don't want to your being lazy when your in college think about all the stuff you didn't learn or all the stuff you needed to learn you will be regretting it so try not to cheat anymore

kasandra
Mar 13, 2017

I have 2 answers to this.....and I know what your thinking "oh great another one of 'those people' " aren't you? Well I'm here to say (in a sassy voice) first of all Why are YOU on here then, hmm can you answer that for me? and second most of us on here are probably in some kind of online school and probably with be all the way through college so just stop there is no use in it.

I know yall are all sick and tired of it so like this comment if you agree with me. And when i post of here yall best believe your not gonna be hearing any of this from moi!!

P.S. Anytime I post it is most likely going to be some 100% answers be on the lookout for my name in the comments.

Listen to grace!!

100% TYSM GRACE!! :D

oomg thax

also moi means me in french

Your boyyy. Wow, you're a young child? Oh boy! I guess that means I get to diss you more! This should be fun. Number 1. If you're planning on telling someone they are wrong, at least do it right. Number 2. You need to correct grammar. Number 3. If you take the time to tell someone they are wrong, at least do it properly.

Number 4. 16% Wow, if you only had a brain, Scarecrow. That means you missed 5/6. That's sad. Number 5. You take the time to tell someone that they are wrong. That makes you mad, hang on. Number 6. grace=Grace. Diss someone, do it right.

Number 7. Getting closer! She has no idea who you are, why should Grace care? She put her answers, trying to help. Number 8. I know you didn't yell, too much, so I'm not going much further. Number 9. Last one. You are a vacuum, you #&$( so bad. That is Suck, in the number signs.

Can Ya'll mind your own business and let us do what we want to do, sure cheating isn't right but when people truly don't understand they look up things. in college in high school, we'll rely on looking things up, and if we don't do that now we will probably fail high school, cheating will help us in the real world, so be realistic for a second

I think the people trying to shame others for being on this site are just wrong, why? #1- If you're on this site that kinda means you are also looking for the answers so technically you're also a "cheater". #2- I think this site isn't just to cheat, I use it to check answers and see if I made a mistake so I can go back, re-read, and figure out why I got it wrong. #3- Those people who are saying you should probably stop "cheating" because your teachers know or whatever are just trying to scare you and get you off this website so they can teach you some sort of lesson about "cheating" on this site. Now the reason I say "cheating" or "cheater" is because it's not actually cheating, I just think it's wrong to tell other people, that they don't even know for that matter, that they will never pass or understand anything if they continue using this site, I just think it's so wrong, no one should have that mindset if they aren't doing anything wrong...*smh* I do appreciate the other people trying to prove this same point, it is very wrong to shame someone for trying to get help after trying very hard...

Also, @Grace 100% Thank you for helping me out!

Grace is still correct.

Hang on, it cut me off. The #&$( means S-U-C-K. I hate it when it cuts me off.

Hey guys yes cheating is not ok but school is stressful and kids get over stressed with school and home lives and a lot of middle schoolers get depressed too (coming from experience) it’s not fun it’s extremely frustrating and it’s the worse thing ever so kids come here for answers because they are afraid of the teachers that they will make fun of them or their afraid to go to their guardian because they think they will put them down and make them feel even worse so they rather cheat then have to face that telling someone to get off an cheat is not helping it’s just making them feel worse kids have an easier time learning at their own pace and from videos on the internet but there’s also some kids that have a better time with in person stuff but due covid that’s been hard and all of us have been isolated from people so it’s hard to get back into normal school and normal school is even more stressful and not to mention less safe. So let’s not bring kids down for cheating yes it’s bad but if it helps their mental health at all then just leave it and if you want them to not cheat instead of telling them not to give them sites to find the answer themselves

@Not inportant your not inportant so we wont listen to you lol.

@ baby cakes ur on here to so ur obviuosly a cheater to. dont tell us to get off bc ur on here too

Hey, grace your wrong you got me a 16 percent maybe if you're going to get the right ANSWERS for a specific group of people then tell everyone else that it is for a specific group and tell us that group because you just got me an f, but I'm not mad I'm just frustrated.

mackenzie that is what your teachers are for i have been in that place and i know what it feels like too but if you are in desperate need for help ask your teachers! that's what they're there for they will help you if you don't ask or you don't want to your being lazy when your in college think about all the stuff you didn't learn or all the stuff you needed to learn you will be regretting it so try not to cheat anymore

she is right hope u get an A though

We do not do your homework for you. Although it might take more effort to do the work on your own, you will profit more from your effort. We will be happy to evaluate your work though.

Resubmit with your answers.

Wow... You could just help them. and you shouldn't just give the answers. And maybe you should study instead of cheating on this website...