Adult stem cells cannot repair and replace cells in a animal true or false?

What occupation did muhammad have before the first revelation

Draw the farm's ppf for corn and beef. draw a point that shows an inefficient combination of corn and beef. label ita. draw a point that shows an unattainable combination of corn and beef. label itb. draw a point that shows an efficient combination of corn and beef. label itc.

Explain how light energy is turned into chemical energy? ! due tomorrow!