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Answers by DavidO

Answers by DavidO
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In response to low levels of calcium, the parathyroid glands release a hormone that dissolves some of the calcium in the bones, moving it into the blood. This is an example of A) a positive feedback loop,
answered May 24, 2019
7 votes
136k views
What precedent the state set what is required railroads to provide separate travel means for African-Americans
answered Jan 17, 2019
2 votes
32.2k views
Which element of a short story would be most important to an action movie?
answered Dec 4, 2018
5 votes
95.9k views
Sally goes jogging every morning. She also enjoys playing tennis and baseball. Identify the lifestyle that Sally maintains. sedentary lifestyle moderately active lifestyle active lifestyle inactive lifestyle
answered Nov 3, 2018
1 vote
165k views
In a ____, a single central government makes decisions about what products to produce and what prices to charge.
answered Sep 10, 2018
1 vote
62.7k views
"What is the main idea of this cartoon? (1)After the earthquake, the government of Haiti responded quickly to the needs of the people. (2)The people of Haiti had been facing serious economic problems before
answered Apr 15, 2018
2 votes
171k views
Please Help with this question !!!
answered Apr 12, 2018
1 vote
854 views
What is the answer!!!
answered Jan 7, 2018
2 votes
29.2k views
.When writing for a general audience, the writer should keep in mind that a general audience most likely?
answered Jul 25, 2017
2 votes
233k views
What are 3 physical properties of aluminum foil
answered Oct 8, 2015
5 votes
215k views
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