The solute concentration of the body fluids of a shark is dose to that of seawater. The shark achieves this by retaining high levels of urea in its body What is the benefit of such a mechanism?
A. It prevents the gain of salts from the surrounding sea by osmosis
B. It prevents the gain of water from the surrounding sea by Osmosis
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C. It prevents the loss of water to the surrounding sea by osmosis
D. It prevents the loss of salts to the surrounding sea by osmosis

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

hi there!

answer: b. nucleolus

explanation: nucleolus is a structure in the nucleus are ribosomes are made.

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: d

-charlie

you! : )

: d

the match duh

explanation: