A.
contracts to move substances through the body
D.
breaks down food to acquire nutrients
Your chest and ribs wait what are you asking exzactly because you dont sin with oranisms
It would be B) Pro
Hope this helps you :))
Answer:
this is what i think the answer is
What are the unique properties of all stem cells? ... All stem cells—regardless of their source—have three general properties: they are capable of dividing and renewing themselves for long periods; they are unspecialized; and they can give rise to specialized cell types.
Answer: Oligodendrocytes
Explanation: Oligodendrocytes form the myelin sheath around axons in the central nervous system.