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Biology, 21.06.2019 22:00
Which of the following does not describe a physical property of iron? a iron is silvery-white or gray in color. b iron has a boiling point of about 3,000°c. c iron is a magnetic element . d iron and sulfur react to form iron sulfide.
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Biology, 22.06.2019 03:40
Imagine you are introducing the lac operan and the trp operon to students who have never learned about it before. complete the table to compare the similarities and differences between the two operons
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Biology, 22.06.2019 08:00
Drag each tile to the correct box. arrange the layers and faults from oldest to youngest.
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Biology, 22.06.2019 13:00
Substances that can pass through cell membranes by diffusion include a. na ions. b. proteins c. glucose. d. oxygen.
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What term describes how the soil is arranged in aggregates?...
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