To study the details of protein molecules on the surface of a cell, a biologist would likely use a

scanning electron microscope

transmission electron microscope

compound light microscope

dissecting microscope

scanning electron microscope is the correct answer.

Explanation:

Scanning electron microscope that uses a focused beam of the electron over a surface to form an image.

electron interacts with the atom present in the sample and it produces various signals that are used to get the information about the composition and details structure of protein molecule.

scanning electron microscope use in the research works, industrial work, forensic investigations.

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