Tuesday
September 30, 2014

Homework Help: Science

Posted by Anonymous on Sunday, February 2, 2014 at 8:05pm.

Which of the following best summarizes the function of the respiratory system?

A. to transport oxygen to cells and wastes away from cells.
B. to protect the organs in the chest cavity
C. to move oxygen from the air into the body and carbon dioxide from the body into the air
D. to provide a barrier between the body and the environment

C (I'm thinking about A)

Which of the following is not true about the structure of an alveolus?

A. it has thick walls to trap gases that enter during breathing.
B. it has high surface area to allow lots of gas exchange.
C. it has a high concentration of oxygen and a low concentration of carbon dioxide.

A

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Science Check Answers? - Which of the following best summarizes the function of ...
Science - Which of the following best summarizes the function of the respiratory...
Science help please - 1. Name the components of the respiratory system in the ...
science: cells - 1~ What do red blood cells do and is there anything ...
Plz, Ms.Sue/anyone check my answers? - 1. Which of the following best explains ...
Check please science - Cells are to tissues as organs are to 1 ORGAN SYSTEM 2 ...
Biolody - Which of the following is NOT a characteristic of the respiratory ...
Biology - 20. One difference between a gastrovascular cavity and a one-way ...
Biology - 20. One difference between a gastrovascular cavity and a one-way ...
Science-3 question - 1. Which of the following is not a function of the ...

Search
Members