How does a closed lake differ from an open lake?
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As an asteroid comes close to earth, it's name will change to? apex
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Select the correct answer.what is the observable characteristic of a person called? o a. genotypephenotypeoc.alleleo d.gene
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Achange in which factor will affect the rate of reaction only when gases are involved? temperature pressure surface area concentration
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The hershey and chase experiments involved the preparation of two different types of radioactively labeled phage. which of the following best explains why two preparations were required? a. the bacteriophage used in the experiments was a t2 phage. b. it was necessary that each of the two phage components, dna and protein, be identifiable upon recovery at the end of the experiment. c. each scientist had his own method for labeling phage, so each conducted the same experiment using a different isotope. d. establishing the identity of the genetic material required observation of two phage generations.
Answers: 2
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