A predator-prey relationship tends to keep the populations of both species in balance. This is shown by the graph in Figure below. As the prey population increases, there is more food for predators. So, after a slight lag, the predator population increases as well.
Answer:
The correct answer is B.It was necessary that each of the two phage components, DNA and protein, be identifiable upon recovery at the end of the experiment
Explanation:
Hershey and chase in his experiment lebelled the T₂ bacteriophage with radioactive sulfur and radioactive phosphorus separately. Then they infect E.coli with T₂phage and separated phage from bacteria by centrifugation.
Because DNA contains phosphorus not protein, cells infected with phage containing radioactive phosphorous showed radioactivity bacause DNA enters the cell not protein confirming DNA is the genetic material and radioactive sulfur was found in supernatant.
Tap water is directly supplied from the home faucet, while distilled water is water taken from any source that has gone through a distillation process. Tap water contains compounds, such as iron, chlorine, magnesium and natural minerals, that either are added by the public water system or have gotten in the water supply. Distilled water is in its purest form, with no bacteria or inorganic compounds.
Explanation is in the file
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