Which organelle forms the surface of a cell, separating its contents from the outside world PLEASE HELP

1 answer:

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The Cell membrane. The cell membrane Is selectively permeable meaning that it allows certain substances such as water to get through but I can also block other substances that don’t belong in the cell to get into the cell

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Answer:

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The number of progeny expected to display the dominant phenotype for both the A and B genes should be 4.

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