Answer:
Explanation:
maintaining a stable environment controlling what enters and exits the cell movement of materials into the cell
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Answer: The answer is option B. Cell Walls
Explanation: Prokaryotic cells are much smaller than eukaryotic cells, have no nucleus, and lack organelles. All prokaryotic cells are encased by a cell wall. In eukaryotes, vertebrates don't have a cell wall but plants do.
Ca+2 , the plus 2 indicates the loss of 2 electrons
