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>
Answer:
Holocrine Glands.
Merocrine or Eccrine Glands.
Apocrine Glands.
Explanation:
Running or eating fruits and vegtables