The human body is organized into specific levels of increasing complexity. which level of organization would be seen in the liver, but not in the epithelium?
a. tissue
b. organ
c. organism
d. organ system

Blood stem cells may develop into any kind of human blood cells. what kind of stem cells are blood stem cells? a. multipotent stem cells o b. totipotent stem cells o c. pluripotent stem cells o d. unipotent stem cells