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Author Question: The first step of the scientific method is to A. choose your test subjects. B. make an ... (Read 320 times)

sabina

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on: Aug 20, 2018
The first step of the scientific method is to
 
  A. choose your test subjects.
  B. make an observation.
  C. conduct an experiment.
  D. develop a hypothesis.

Question 2

A physical symptom of rickets, a vitamin D deficiency disease, is
 
  A. bruising of the skin.
  B. hair loss.
  C. bow legs.
  D. loss of hearing.


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bbburns21

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Reply #1 on: Aug 20, 2018
Answer to Question 1

ANS: B

Answer to Question 2

ANS: C


sabina

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Reply #2 on: Aug 20, 2018
Thank you!


bbburns21

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Reply #3 on: Aug 20, 2018
Always glad to help...


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Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

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