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notka56 [123]
3 years ago
10

1. Both white and red blood cells form in: a) bone marrow b)

Biology
2 answers:
Alex787 [66]3 years ago
6 0

Explanation:

a

they form in the bone marrow

a red blood cell lives for approximately 120 days.

charle [14.2K]3 years ago
5 0

Answer:

1 a) bone marrow

2 RBC lives for approximately 115 days

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Answer:

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Explanation:

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