A standard pcr cycle includes three steps: denaturation (95°c), annealing (55°c), and elongation (65°c). Drag each ingredients of a pcr reaction into the bin labeled with the step in the pcr cycle in which it is first used.

32: from largest to smallest, this hierarchy includes eons, eras, periods, epochs, and ages.

33: answer is c

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the gas collects in coils that then becomes a liquid that then flows through the coils inside the refrigerator

at right angles to each other