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Cell membranes contain a central bilayer formed by A) lipids B) protein pumps C) carbohydrates D) proteins
answered
Jan 24, 2017
Biology
high-school
4
votes
229k
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What observation led researchers to propose that chloroplasts evolved from cyanobacteria?
answered
Oct 27, 2016
Biology
high-school
5
votes
51.8k
views
The degree of polarity of a chemical bond in a molecule of a compound can be predicted by determining the difference in the (1) melting points of the elements in the compound (2) densities of the elements
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Oct 25, 2016
Chemistry
high-school
4
votes
182k
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