How do substances dissolve in water?

Environmental differences within ecosystems are generally caused by

You arrive late to a biological seminar. however, just as you enter the room, you hear the speaker referring to the "five-prime end" and the "three-prime end" of a macromolecule. immediately, you know that they are talking about a: ]

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