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Biology, 22.06.2019 13:10
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.
Answers: 2
Biology, 22.06.2019 19:00
What is the next step in muscle contraction after the actin changes shape
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The cell walls of fungi are made of instead of cellulose...
History, 02.12.2019 21:31