Answer:
Second :)
Explanation:
Can I still get brainliest?
bone marrow <span>contains hematopoietic stem cells, which give rise to the three classes of blood cells that are found in the circulation: white blood cells (leukocytes), red blood cells (erythrocytes), and platelets (thrombocytes)</span>
-eat
-sleep
-take a how
-eat heath lunch
-and do yoga
