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Author Question: Every radioactive substance is in a constant state of decay (changing from being unstable to being ... (Read 83 times)

Mr.Thesaxman

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on: Jun 27, 2018
Every radioactive substance is in a constant state of decay (changing from being unstable to being stable). Which phrase is used for the length of time it takes for a certain number of atoms in a radioactive substance to decay and become stable?
 
  A) half life
  B) term life
  C) stable time
  D) unstable time

Question 2

A low level of ________ in a person with sickle-cell disease causes the red blood cells to have a crescent or sickle shape.
 
  A) ferritin
  B) immunoglobulin
  C) factor VIII
  D) oxygen


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Ksh22

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Reply #1 on: Jun 27, 2018
Answer to Question 1

A
Explanation: A) Correct
B) This does not describe radioactive decay over time.
C) This does not describe radioactive decay over time.
D) This does not describe radioactive decay over time.

Answer to Question 2

D
Explanation: A) The ferritin level is not low in sickle-cell disease.
B) The immunoglobulin level is not low in sickle-cell disease.
C) The factor VIII level is low in hemophilia, not sickle-cell disease.
D) Correct


Mr.Thesaxman

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Reply 2 on: Jun 27, 2018
Thanks for the timely response, appreciate it

upturnedfurball

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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