There are a variety of mechanisms by which enzyme activity can be controlled. Match each example of enzyme regulation with the associated given mechanism. Mechanism: Control by modulators, Control by covalent modification, Genetic controla. allosteric regulationb. regulation of chymotrypsinc. phosphorylation of glycogen phosphorylased. enzyme induction (synthesis) e. lactose stimulation of bacterial beta-galactosidase activation inhibition f. zymogen activationg. feedback inhibition

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

yes it is weird but true

the answer is :