Biology, 12.11.2020 16:50 aaburto1515
___ (deoxyribonucleic acid) is a double-standard helical polymer. it contains: the ___ deoxyribose, a ___ group, and the ___ adenine, cytosine, guanine, and thymine.
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Veins have a much lower blood pressure than arteries. which of these prevents backflow of blood in veins? a. pressure applied by the heart b. one–way valves in veins c. thin muscular walls of veins
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The earths core is made up mainly of what 2 substances? 2. like an egg, earth has a core, a layer surrounding the core, and a thin, hard outer layer. which layers of the earth match the layers of an egg?
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Biology, 22.06.2019 16:00
Which topic is most likely to be studied by bo which topic is most likely to be studied by botanist? insect metamorphosis, viral infection, plant growth, animal physiology
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___ (deoxyribonucleic acid) is a double-standard helical polymer. it contains: the ___ deoxyribose,...
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