Which of these is a possible risk associated with stem cell therapy? a) the host’s body could reject the transplanted stem cells. b) stem cells are totipotent and can form other cells or tissue types. eliminate c) stem cells are multipotent and can form only a few other cell types. d) stem cells could continue to differentiate after they are transplanted.

True or false: (a) the strings of little red dots represent carbohydrates. (b) the model is called a bilayer because there are two main types of molecules present, lipids and proteins. (c) the many black lines represent amino acid tails. (d) this model shows membrane transport. (e) the blue ovals are hydrophobic. (f) the blue ovals represent phospholipid heads.