Biology, 09.01.2020 19:31 Jeremiahcornelis
Researchers looking for fossils of the earliest life-forms face many hurdles. for example, few sedimentary rocks date back more than 3 billion years. review what you learned about plate tectonics in section 16.7. then, explain why so few remaining samples of these early rocks remain.
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Legumes, a type of plant, require rhizobia, a type of soil bacteria, to survive since these organisms fix nitrogen during photosynthesis. rhizobia use the legumes for food. what would most likely happen to the legume population if rhizobia suddenly became extinct?
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You are working in the lab and are working with the same element but with varying isotopes of the element. you are working with c-11, c-13, c-14, and c-15. what is the average atomic mass of this element? (use periodic table) a- 12 b-15 c-14 d-13
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Researchers looking for fossils of the earliest life-forms face many hurdles. for example, few sedim...
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