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What is an organism that obtains energy from the sun through the process of photosynthesis?
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Explain how paleontologists use trilobite fossils as index fossils for various geologic time periods.
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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. oneβway valves in veins c. thin muscular walls of veins
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14. which of the following codons code for threonine? a. ucg b. ugu c. cga d. aca
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Astudent poured a solution of bromothymol blue indicator into three test tubes. then he placed an aquatic plant in two of the test tubes, as shown below. he placed a stopper on each test tube and placed them all in the dark for 24 hours. bromothymol blue turns from blue to yellow in the presence of co2
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What is an organism that obtains energy from the sun through the process of photosynthesis?...
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