Answer:
<em>A. Atoms are composed of protons, neutrons, and electrons.</em>
Explanation:
<em>Dalton's atomic theory proposed that all matter was composed of atoms, indivisible and indestructible building blocks. While all atoms of an element were identical, different elements had atoms of differing size and mass.</em>
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Answer:
Explanation:
They are both protects what enters the cell or exit out the cell
Cells were taken while she was being treated for cancer many years ago and these cells have been cultured in the lab ever since.
