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Hurry which of these is true about index fossils? a) are very scarcely found b) used as guides in relative dating c) found in the youngest layer of the rock d) used as reference points in absolute dating
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Biology, 22.06.2019 10:00
Which substance contains thylakoids? a) nadph b)atp c)stroma d)chloroplast
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What tool do geneticists use to predict the outcome of genetic crosses? a.karyotype b.punnett square c.centrifuge
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Biology, 22.06.2019 21:30
Use the drop-down menus to match each part of the scenario to the correct scientific practice. akira records the speed of a reaction without a catalyst and then with a catalyst. akira creates a reaction without a catalyst and repeats the reaction with a catalyst. akira turns in a written lab report to his science teacher. akira wonders, "will adding a catalyst speed up this chemical reaction? " akira writes in his notes that adding a catalyst sped up the chemical reaction because the catalyst lowers the activation energy needed to get the reaction started.
Answers: 2
Jose wants to investigate how physical activity affects heart rate.
what is the testable quest...
what is the testable quest...
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