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In the respiratory system, epithelial cells remove carbon dioxide from the body. act as a passageway by which air moves into the lungs. secrete fluids that protect the inside of the trachea. transfer oxygen
answered
Sep 3, 2019
Health
high-school
4
votes
145k
views
Does anyone know how to do #4 plz help me!!!
answered
May 1, 2019
Mathematics
college
3
votes
143k
views
Finding a solution to the clashes between Palestinians and Israelis that took place between the 1970s and the 2000s was difficult because _____. Palestinians created a homeland but Israel would not recognize
answered
Jan 21, 2019
Geography
high-school
4
votes
223k
views
Which crime refers to someone wrongfully obtaining and using another persons data? What is it through? A. Bad credit history B. Check bouncing C. Identity theft A. Consent B. Permission C. Fraud
answered
Oct 6, 2018
French
high-school
4
votes
93.3k
views
In the Amy Tan's memoir "Mother Tongue," who is the main audience? Question 7 options: fluent English speakers new immigrants college professors young children
answered
Aug 9, 2018
English
high-school
1
vote
74.3k
views
Molarity and mole fraction are quantitative descriptions of--------- solubility temperature concentration mass
answered
Jul 25, 2018
Chemistry
high-school
3
votes
12.5k
views
Match these men with the appropriate description. 1. friend of the South and assassination victim 2. led a destructive march across the South 3. Lincoln's Democratic opponent in the election of 1864 4.
answered
May 30, 2018
History
high-school
6
votes
137k
views
On a trip Jeff’s car goes 112 miles and uses 4 gallons of gas what is the unit rate for mile to gas
answered
May 18, 2018
Mathematics
college
3
votes
94.2k
views
1+sec^2xsin^2x=sec^2x
answered
Feb 22, 2018
Mathematics
college
3
votes
214k
views
David’s scores on the first three of four 100-point math tests were 86, 92, and 89. What score does he need on his fourth math test to ensure an average score of at least 90?
answered
Feb 18, 2018
Mathematics
high-school
3
votes
194k
views
Which statement is true? People throughout history have used only currency notes for financial transactions. The Reserve Banks determine tax rates. Only the Federal Reserve can buy government securities.
answered
Nov 26, 2017
Business
high-school
7
votes
101k
views
The image above was taken by the spacecraft Messenger as it flew by the planet Mercury. The terrain shown in this image is typical for the surface of Mercury. There are many circular depressions of various
answered
Apr 20, 2017
History
high-school
3
votes
215k
views
How would you share a model to show ten thousand
answered
Feb 9, 2017
Mathematics
middle-school
3
votes
130k
views
How maany 0.5 ltres make 50 litres
answered
Feb 5, 2017
Mathematics
high-school
3
votes
214k
views
A(n) ____________ includes one or more colleges A-university B-junior high school C-high school D-preschool A?
answered
Feb 29, 2016
History
high-school
3
votes
116k
views
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