What kind of stem cells are blood stem cells

What feature of cell theory is best demonstrated in the image

1) what three conditions must be present for minerals to form through natural processes? 2) why are minerals considered inorganic substances? 3) how do oxides differ from other minerals that contain oxygen atoms? 4) how is a sulfide different from a sulfate? what makes native elements unique?

What are examples of the plant life and animal life that can be found in each type of terrarium