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On the outside of the plasma membrane, _____ act as signals or markers to help cells recognize one another. lipids nucleic acids proteins carbohydrates
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On the outside of the plasma membrane, _____ act as signals or markers to help cells recognize one another.

lipids
nucleic acids
proteins
carbohydrates

User Alexyz
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Carbohydrates- When cells with the same markers stick together and work together, the plasma membranes form gap junctions.

User Etudor
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