What is cell theory all life comes from cells cells have one nucleus 7 functions of life nutrition metabolism growth response excretion homeostasis reproduction Emergent properties: higher `a` leads to `b` a: organization level b: complex behavior Example of emergent properties muscle cells vs heart neurons vs brain Weird feature about muscle cells multiple nucleoli Process in which stem cells become specific differentiation Name diseases where stem cells can solve leukemia stargardt's disease Stem cells that can do anything pluripotent Stem cells somewhat specialized in adults that can only do some specific things (e.g. make blood) hematopoietic Stem cells from babies embryonic Stem cells from adults somatic Critical feature about cells SA:V Ratio