Q

Every cell has a ____ around it to keep its contents separate from the external environment.

RRB NTPC (Stage-I); RRB Technicians Grade-III 03/01/2021 (Shift-I); 28/12/2024 (Shift-II) 2021; 2024
✓ Answer: B Cell membrane
The cell membrane forms a selectively permeable boundary separating the cell contents from the external environment.
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