Answer:
Please elaborate more your answer
Explanation:
I believe it'd be A because the virus infects cells whereas the Giardia Lambia only releases toxins.
Answer:
Embryonic stem cells could be used to make more specialized tissues that have been lost to disease and injury. For tissues that are constantly replaced, like blood and skin, stem cells would probably be replaced directly. ... Embryonic stem cells could be grown into more specialized cells for screening potential drugs.
Explanation: