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Answers by ZhengCheng

Answers by ZhengCheng
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Which of the following molecules is the subunit of DNA that links together to form strands of DNA? A. a codon B. a polymerase C. a phosphate base D. a nucleotide
answered Feb 28, 2018
2 votes
170k views
The mineral crystals in obsidian are too small to see without a microscope. This is because it _____.
answered Jun 29, 2017
0 votes
9.0k views
5. The atmosphere is heated both by the Sun and by the Earth's surface. Water radiates heat differently than land, so the air temperature over the ocean is usually different than the air temperature over
answered May 13, 2017
3 votes
65.3k views
Which of the following was invented by roman architects?
answered Mar 21, 2017
3 votes
185k views
the length of a rectangle is 3 feet less than twice the width of the rectangle. if the perimeter of the rectangle is 324 feet, find the width and the length?
answered Sep 8, 2015
3 votes
148k views
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