What’s the difference between observing, inferring, and predicting? What is the difference between quantitative and qualitative observation ?

What is an Independent Variable ?

What is a Dependent Variable?

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examples of nucleic acids are deoxyribonucleic acid (dna) and ribonucleic acid (rna).

imagine a line passing through the center of earth that goes through both the north pole and the south pole. this imaginary line is called an axis. earth spins around its axis, just as a top spins around its spindle. this spinning movement is called earth's rotation. at the same time that the earth spins on its axis, it also orbits, or revolves around the sun. this movement is called revolution.