Saltwater fish, like the squirrelfish, live in saltwater that contains 3.5% salt. surprisingly, the cells in the squirrelfish contain only about 1% salt, like most other living things. what explains how the squirrelfish solve this problem?

What is point source pollution of an aquatic ecosystem? a) pollution of freshwater sources b) pollution from many sources that combine into one c) pollution that occurs over a wide area; water that runs off from fields, parking lots, and other land surfaces d) pollution that can easily be identified with a single discharge source, such as an open pipe which drains into a body of water