How is a model of an atom different from a real atom?

How can eukaryotic tell which strand is the old dna and which one is the new dna strand to fix error?

Which of the following is the best statement about natural selection? Explain how you got your answer. a. Most populations of organisms evolve to become more and more alike, eventually becoming genetic clones b.

Some species of organisms can reproduce either asexually through mitosis or sexually, which requires meiosis. In which of the following situations would it be the most beneficial for a species to reproduce sexually rather than asexually?

Extensive research along the Gulf Shore has uncovered a rise in cancer rates directly linked to consumption of seafood contaminated by the Deepwater Horizon blowout.

After reading the following paragraph, answer the question (s) below. As a scientist employed by the FDA, you've been asked to sit on a panel to evaluate a pharmaceutical company's application for approval of a new weight loss drug called Fat Away.

Which statement about the Internet is correct? Select the best answer from the choices provided. A.) It is completely banned by China and other repressive regimes. B.) It can bring greater political freedom to oppressive regimes. C.

Write a one - to two-paragraph summary describing cloning. (cloning of animals)

There's a good evidence that a meteor hit earth about 65 million years ago which of the following events that the scientist think were triggered by the impact could have caused the Simultaneous global extinction of multiple species including all of

What is a variable? A. A statement that explains a phenomena and can be tested. B. An educated guess used in an experiment. C. Something that must be kept constant in an experiment. D. A value or characteristic that can take different values.

Events that damage the cell's regulatory apparatus, trapping it in the G1 phase of the cell cycle, cause the uncontrolled division of cells called