Which best describes how shared characteristics can be used to identify evolutionary relationships? if organisms have a common ancestor, most of their characteristics will be shared. if two organisms have a shared characteristic, it means one evolved from the other. if organisms have many shared characteristics, they are likely to be closely related. if organisms have a shared characteristic, it means they are closely related.

How do temperature and salinity affect deepwater currents? they create changes in wind direction, moving denser water in the same direction as the wind and causing the deepwater circulation patterns found in the ocean. as temperatures and salinity levels of water increase, the water rises to the surface where it creates currents as it moves to colder regions. they create density differences that cause dense deepwater currents to flow toward the equator where they displace less dense, warmer water above them. they equalize the forces on undersea currents caused by the coriolis effect as they replace more dense water with less dense water.