Is a protist a cell yes or no?

Metamorphic rocks are formed when sedimentary or igneous rocks are subjected to heat or pressure and recrystallize without melting. which of the following rocks results from the metamorphism of limestone? a. granite b. slate c. sandstone d. marble

Of seawater increases with decrease in the temperature. therefore, the cold water sinks to the deeper layers at the bottom

In the ocean why are the greatest amount of primary producers found in the epipelagic zone and how does that affect biodiversity