B I think cause your lifting something up?
Out of the three solutions one is acidic because there is a property of acids which states that they turn litmus papers red
The correct answer is "<span>they can develop into most types of human cells".
Stem cells are cells that are undifferentiated to what function they may serve, depending on the tissue where it will develop in to. In the context of brain tissue implants, these stem cells can develop into brain cells or nerve cells or neurons which comprises the functional brain tissue; this is clinically significant as neurons are not capable of replacing themselves if damaged.</span>
Six dears migrated, this is the answer because immigration and emigration are both acts of migration.
The correct answer is c. muscularis mucosa.