Which best describes the relationship between salinity levels and the amount of dissolved gases in ocean water?
A. As salinity increases, the amount of dissolved gases increases.
B. As salinity increases, the amount of dissolved gases decreases.
C. As salinity decreases, the amount of dissolved gases decreases.
D. As salinity decreases, the amount of dissolved gases remains the
same.

many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.

which

what is a measurement of the earth’s history divided into time periods?

> fossil record <

sedimentary rock

> geologic time scale <

radioactive elements