- What are the uses in finding fossils in sedimentary rocks? (What do they determine?)?

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What did Griffith observe when he injected into mice a mixture of heat-killed diese-causing bacteria and live harmless bacteria...? Can antimatter be harnessed as fuel? X= ? 9=√(x-12) +11? Bought a tomato and in the middle found something black and looked like a spider with long legs. What can this be. Anyone have an answer.? Math Help? What is the factored form of the polynomial? x^4+8x^3-35x^2-294x?