Answer: Option B
Explanation: The thin layer that forms the outer covering of the cell is known as the cell membrane. It is composed of the lipid bilayer which as embedded proteins.
This membrane is selectively permeable which means it allows only specific molecules to pass through them.
The main function of cell membrane is to protect the cell from the outer environment and by the invasion of harmful bacteria and viruses.
Force is mass × acceleration and it is measured in Newtons.
Mass = 3kg
Acceleration = 9m/s²
F = ma
F = 3×9
F = 27Newtons.
They are very very strong tides they have nothing to do with the season spring they occur when the sun moon and Earth are in a line., the gravitational forces of the Moon and the Sun both contribute to the Tides. spring tides occur during a new moon or full moon
The answer to the question is option C