Question

1. Both white and red blood cells form in: a) bone marrow b)
thymus c) arterial wall d) A and C
2. A red blood cell lives for approximately​

Answer 1

Explanation:

a

they form in the bone marrow

a red blood cell lives for approximately 120 days.

Answer 2

Answer:

1 a) bone marrow

2 RBC lives for approximately 115 days