Answer:
D
Explanation:
Bone marrow contains stems cells which then turn into immature blood cells and they mature there. kinda like a school for young blood cells. they also make white blood cells and platelets.
The advantage of small and large reserves is that it only
requires small labor and it can also serve a city and a town. The only disadvantage
of the small and large reserves is that it is quite expensive despite of its
usefulness.
Answer:
its the vascular system
Explanation:i know beacuse and my name is coden btw
Confused on what has to be answered but that’s the spirit
