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What separates the strands of DNA in the polymerase chain reaction (PCR) technique?

How do buffers minimize change in the pH of biological systems?

Individuals with traits that make them more successful in their environment will, on average, produce more offspring. This “fitting” of a population to their environment is called ________.

Of the choices listed, which is the best indicator of the complexity of the organism?

Predict what would happen as the entropy of a system approached 100%.

Of the choices listed, which is the best indicator of the complexity of the organism?

Predict what would happen as the entropy of a system approached 100%.

Four small bags are filled with a 10% starch solution. The bag’s membrane contains microscopic pores large enough to let smaller water molecules cross but not the larger starch molecules. Bag 1 is placed in a beaker of distilled water (0% starch). Bag 2 is placed in a beaker containing a 5% starch solution. Bag 3 is placed in a beaker of 10% starch solution and bag 4 is placed in a 50% starch solution beaker.Bag 1: 10% starch / Beaker 1: 0% starchBag 2: 10% starch / Beaker 2: 5% starchBag 3: 10% starch / Beaker 3: 10% starchBag 4: 10% starch / Beaker 4: 50% starchThe bags are weighed initially and at regular intervals for a specific period of time. Some bags saw a change in weight, some did not. Answer the following questions based on the expected outcomes of this experiment.Which bag is expected to be the heaviest at the end of the experiment?

What is not a structural difference between DNA and RNA?

What is the minimum amount of regular physical activity that has been shown to reduce the risk of cancer?