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Author Question: All the circulating red blood cells in an adult originate in the A) heart. B) thymus. C) spleen. ... (Read 41 times)

jon_i

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on: Feb 28, 2019
All the circulating red blood cells in an adult originate in the
 A) heart.
  B) thymus.
  C) spleen.
  D) red bone marrow.
  E) lymph tissue.

Question 2

A cation that is essential for muscle contraction, nerve function, and blood clotting is
 A) sodium.
  B) potassium.
  C) calcium.
  D) magnesium.
  E) selenium.


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thall411

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Reply #1 on: Feb 28, 2019
Answer to Question 1

D

Answer to Question 2

C


jon_i

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Reply 2 on: Feb 28, 2019
:D TYSM

tuate

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Reply 3 on: Yesterday
Excellent

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