Question

What is the main function of the circulatory system in multicellular organisms?

A.
to bring oxygen into the lung

B.
to put carbon dioxide into all blood vessels

C.
to expel waste products from the body

D.
to transport materials throughout the body

Answer 1

@Azionne @brooklynsshaw @Kicker71

Answer 2

@Decarr432 please help me will medal and fan

Answer 3

to start what is an multicellular organisms

Answer 4

Multicellular organisms are organisms with more than one cell. This is the case for animals, plants and most fungi. In such organisms, cells are usually specialised. All the cells with the same function work together

Answer 5

@Decarr432

Answer 6

@K12awesomeness

Answer 7

Now what does the circulatory system do?

Answer 8

The blood circulatory system (cardiovascular system) delivers nutrients and oxygen to all cells in the body. It consists of the heart and the blood vessels running through the entire body. The arteries carry blood away from the heart; the veins carry it back to the heart.

Answer 9

Well, the answer here is D because it covers the other options namely A and C while B is not really true.
Multi cellular organisms are made up of billions of cells each specialized to a unique role and these cells are organized into structural and functional units such as tissues and organs.
For each cell and organ to function optimally, it requires oxygen and nutrients and needs carbon dioxide and metabolic waste taken away in a continuous, never ending process.
A mechanism is needed to accomplish the important function of transporting the relevant materials to and from the cell. The circulatory system fits this bill splendidly. It is a specialized organ system which allows blood and lymph to flow through the entire body carrying nutrients such as glucose, amino acids and electrolytes as well as oxygen to each cell, at the same time carting away carbon dioxide and all sorts of metabolic waste over to excretory organs to be expelled from the body.

Answer 10

So knowing what the circulatory system does what do you think the answer is?

Answer 11

@K12awesomeness please do not give direct answers help guide the student on their own, and please do not jump in when someone is helping

Answer 12

I didn't.. She tagged me and I came to help her. Not just 'one' person can help. People can help at the same time.

Answer 13

Decarr just stop trying to be something ur not

Answer 14

Yes but giving a Direct answer isn't helping

Answer 15

I gave her an explanation didn't i ?

Answer 16

If u were a mod it would say so, but ur not so just continue to be an open study user, and let the mods handle it if they want to tf

Answer 17

Giving an explanation doesn't matter, It is against CoC to give a direct answer

Answer 18

Dont worry @K12awesomeness i got this

Answer 19

Okay, thanks.. and ur welcome @BarbieJayyyyy

Answer 20

@Decarr432 stop being petty about this stuff on this site if we wanted u to be a mod im pretty sure it would say it by ur name but it dont so i advise u to stay in a recruits spot

Answer 21

Oh iight i aint think so HAVE A NICE DAY!!!!!!!!!! :)

Answer 22

No I don't want to be a mod, I am just doing what OS was supposed to be used for. have you ever read the CoC?

Answer 23

I really dont care about the

Answer 24

You agreed to the CoC

Answer 25

COC it is not ur place to tell someone not to do something that is my point

Answer 26

even though im doing it now, but only cuz im tired of all these wanna be mods the stuff is getting annoying

Answer 27

STOP NOW!!!!!!!

Answer 28

Yes ma'am

Answer 29

Yea

Answer 30

so is the the answer d

Answer 31

Umm @K12awesomeness gave u the answer lol

Answer 32

but yes it is d

Answer 33

ik

Answer 34

@Azionne

Answer 35

Which three components are common to the circulatory systems of most living animals?

A.
arteries, veins, capillaries

B.
vessels, heart, circulating fluid

C.
aorta, ventricles, atria

D.
blood, heart, cavities

Answer 36

@K12awesomeness @K12IsAwesome

Answer 37

@Jadeishere

Answer 38

i think its d

Answer 39

Nope, not D.

Answer 40

What do you think @BarbieJayyyyy

Answer 41

shoot they are all good answers though

Answer 42

Okay, so another name for the circulatory system is the Cardiovascular system.
Did you already know this or were you not sure?
As you know, the cardiovascular system is an organ system, with it's main organ as the heart.

Answer 43

Blood is the circulating fluid. It is the connective tissue of liquid plasma and cells.
Heart is a muscular pump to move the blood and have it circulate throughout the body of living animals.
Blood vessels are arteries, capillaries and veins that deliver blood to all tissues.

The Circulatory System has two types. They are the open circulatory system and the close circulatory system.

An open circulatory system is one where the blood does not circulate inside blood vessels but also flows into cavities that irrigate tissues.

A close circulatory system is one where the blood circulate only inside the blood vessels.

Answer 44

So, it would be B.

Answer 45

dang im super late XD

Answer 46

lol ^

Answer 47

No, it's A. Lol, the arteries, veins and the capillaries all connect to the heart to help blood flow

Answer 48

i agree with @Jadeishere ^-^'

Answer 49

They're the three most important organs of the circulatory system aside from the heart

Answer 50

Thanks person who thinks K12 is awesome :)

Answer 51

:3

Answer 52

OTAY!!!!!!!!!!!!!! Thank uuuuuuu

Answer 53

Lol well, bye now!

Answer 54

@Jadeishere wat grade u in

Answer 55

@K12IsAwesome

Answer 56

Wat grade u in

Answer 57

7th

Answer 58

okay