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Cyanobacteria changed the atmosphere on early Earth because they led to increased a. reduced, soluble forms of iron. b. nitrogen levels. c. water levels in the oceans. d. atmospheric O2 levels.
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The first three phases of the cell cycle are collectively known as (1 point) play audio cellular respiration. telophase. mitosis. interphase.
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Individuals do not compete directly for resources, but are prey for the same predator
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Quick asap will give brainiest ! what best describes the same pattern of tides on earth throughout the day? neap tides spring tides semidiurnal tides nocturnal tides
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