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In systemic tissue fluids, the enzyme carbonic anhydrase catalyzes the reaction CO2 + H2O → H2CO3 (which then can dissociate into H+ and HCO3-). In fact, CO2 released from cells is converted to HCO3- ions
answered
Sep 22, 2020
Biology
high-school
7
votes
26.5k
views
Which of the following is NOT an example of self-inflicted environmental damage done by the greenland vikings? a. They overgrazed b. They used grassland to insulate their houses c. They chopped down forests
answered
Sep 15, 2020
History
high-school
3
votes
74.7k
views
A nerve cell that is specifically designed for communication in the body
answered
Jul 23, 2020
Biology
middle-school
5
votes
106k
views
15. Look at the U-shaped body of water in the image. What's this body of water called? O A. An oxbow lake B. A kettle lake C. A meander D. A delta
answered
Jun 25, 2020
Biology
middle-school
2
votes
67.6k
views
According to the monk, why does Fortune abandon people? A. Because evil people don't need fortune to help them achieve their schemes. B. Because people become prideful and believe that she will always
answered
Apr 27, 2020
English
college
3
votes
222k
views
There were two sides in WWII. Which answer choice correctly identifies the Axis & the Allies? A) Japan, Italy, Germany- Axis; France, America, Britain, Soviet Union- Allies B) Japan, Italy, Germany- Allies;
answered
Dec 9, 2019
Social Studies
college
1
vote
201k
views
Which subordinating conjunction correctly completes this sentence? Mandy practiced karate every day, _____ she failed to beat her final opponent.
answered
May 24, 2019
English
middle-school
1
vote
178k
views
A sustainable society is based on _____. demand for resources zero pollution increasing wilderness areas conservation of resources
answered
May 23, 2019
Biology
middle-school
1
vote
54.9k
views
The second paragraph of the Declaration of Independence establishes general principles about the rights of man and the role of government. What is the most likely reason that Jefferson included this section?
answered
May 2, 2019
English
middle-school
2
votes
196k
views
The integral of: -xe^x²
answered
Feb 13, 2019
Mathematics
college
1
vote
21.1k
views
What was a provision of the Magna Carta concerning taxes?
answered
Oct 22, 2018
History
high-school
2
votes
31.9k
views
How would they define people called "gentlemen of the roads" back then
answered
Sep 9, 2018
English
middle-school
3
votes
62.3k
views
a cells digestive enzymes are enclosed in a membrane-bound organelle. how can these molecules function in the cell
answered
Jun 18, 2018
Biology
high-school
4
votes
130k
views
A mineral that contains carbon,oxygen,and the metallic element magnesium would be classified as
answered
May 22, 2018
Biology
high-school
4
votes
185k
views
Which is correct, I or me? Lydia and I/me are going to be in the play.
answered
Mar 7, 2018
English
middle-school
4
votes
4.9k
views
Applied sciences refers to the study of scientific principles. True False
answered
Mar 1, 2018
Physics
high-school
4
votes
33.1k
views
Meg has a can that contains 80% of orange juice and the rest water. The can has 1 liter of water. Part A: Write an equation in one variable that can be used to find the total number of liters of orange
answered
Jan 18, 2018
Mathematics
high-school
5
votes
68.3k
views
What allowed the Middle Colonies to develop trade and commerce? A) the long growing season B) the short growing season C) large plantations D) excellent harbors
answered
Aug 27, 2017
Social Studies
middle-school
4
votes
72.8k
views
Why was the victory of the Franks at the battle of Tours in 732 important A. Charlemagne's forces decisively defeated the Lombard armies in Italy B. It stopped Muslim armies from advancing farther into
answered
Aug 13, 2017
History
high-school
0
votes
113k
views
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