They are different because the <em>embryonic stem cells</em> can be all cell types of the body because they are Pluripotent. Where as the <em>adult stem cells </em>are thought to be limited to only their tissue of origin
Pluripotent (<em>Adjective)</em>
An immature stem cell, capable of giving rise to to several different types of cell.
<span> Because when bacteria convert ammonia into nitrates and nitrites, producers need them to make proteins, and then consumers eat the producers and reuse the nitrogen to make their own proteins.
Hope this helps!
-Payshence xoxo</span>
The similarity between the sea star larva of modern times and some primitive vertebrae larvae suggests that they <span>share a common ancestor with sea stars.</span>