What does hypertonic , hypotonic and isotonic solution mean ? ?

Which type of landforms forms at the plate boundary as a result of divergent stress

Some substances but not other can cross the (blank) membrane of a cell

What are some of the immune functions of the lymphatic system? a. cleaning red blood cells from the blood and creating lymph fluids b.transporting lymph to the tissues and creating lymph fluids c.removing infectious agents and making white blood cells d.making red blood cells and removing infectious agents