Answers by Marfalkov
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Answers by Marfalkov

Answers by Marfalkov
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The human heart, composed of specialized muscle cells, beats to a specific rhythm. The heart cell rhythm partly depends on the opening and closing of series of gateways within the cell membrane, called
answered Dec 29, 2017
6 votes
124k views
The _________ lived in southern Mexico from around 1500 BC to AD 750, and evidence shows that they were influenced by Olmec civilization. Toltec Aztec Maya Zapotec
answered Aug 30, 2017
1 vote
221k views
More poetry has been written about ___ than about any other human experience. Is it war ,love,death or work
answered Feb 16, 2017
5 votes
15.9k views
The amount of cloud cover on a given day is an example of _____. A. climate B. latitude C. weather D. precipitation
answered Jul 4, 2016
5 votes
168k views
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