Could you add the answer choices?
Answer:
A
Explanation:
Due to ethical problems in using embryonic stem cells of killing a life, ipsc are used by reporgramming a adult stem cell by using appropriate molecular signals to 'reverse the silenced genes', reverting the adult stem cell back to being a multipotent or pluripotent stem cells.
Answer:
Normally, the body makes up to 2 to 4 pints of saliva a day. Usually, the body makes the most saliva in the late afternoon. It makes the least amount at night.
