When the cell begins to synthesize genetic material, it is in g0 phase g1 phase g2 phase s phase

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The table shows dates and appearance of index fossils. which rock layers can be dated most precisely? a) a layer containing both a fossil 4 and a fossil 3 b) a layer containing both a fossil 2 and a fossil 3 c) a layer containing both a fossil 1 and a fossil 4 d) a layer containing both a fossil 1 and a fossil 2

2. given that most biochemical (other than coal) rocks react with hydrochloric acid, what does that tell you about organisms?