Answer:
Embryonic stem cells may become any type of cell, whereas adult stem cells may only become a limited number of cell types.
(Answer D)
Answer:
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Answer:
The answer is C, 15 grams
Explanation:
The conservation of mass means matter can not be created or destroyed. When a chemical reaction takes place, chemicals can recombine but all the matter (mass) still exists. So, the mass of the reactants (X and Y) must equal the mass of the product.