Describe the functions of the cell membrane and cell wall

A cell wall provides the cell with both structural support and protection, and also acts as a filtering mechanism.

Cell membrane protects the cell by acting as a barrier. regulates the transport of substances in and out of the cell.

receives chemical messengers from other cell. acts as a receptor. cell mobility, secretions, and absorptions of substances.

Explanation:

answer: - few nutrients

high pressure

low temperatures

explanation: 1. few nutrients:   open-ocean zone is located way far from the land, which is the main source of the essential nutrients.2. high pressure: pressure increases by 1 atmosphere for every 10 meters increase in depth.3. ample sunlight: a large fraction of the sunlight is reflected back to the atmosphere from the sea surface. 4. varying salinity: below the thermocline, the water is isolated from the atmosphere so the salinity remains stable over the year.5. low temperatures:   the temperature of open-ocean zone ranges from a low of -2°c to an average of 17°c

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explanation:

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