Mr. stein builds a model of a molecule out of wooden beads and pegs. he uses the model to explain the shape of the molecule. mr. stein uses a model because a. the real molecule doesn't actually have a shape. b. the bonds between the atoms in the real molecule are too strong. c. the model makes it more difficult to understand the molecule's shape. d. the real molecule is too small to easily observe.
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The same agricultural practices are used in every country of the world. select the best answer from the choices provided t f
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Which of the following best describes the purpose of the parathyroid hormone? a. it decreases the blood calcium level and decreases blood phosphorus level. b. it decreases the blood calcium level and increases the blood phosphorus level. c. it increases the blood calcium level and increases blood phosphorus level. d. it increases the blood calcium level and decreases blood phosphorus level.
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The most effective way to provide children with safety messages is to
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Mr. stein builds a model of a molecule out of wooden beads and pegs. he uses the model to explain th...
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