Exam 3: The Aquatic Environment

Temperature fluctuates more in aquatic habitats than in terrestrial habitats.

What might make the winter profile for oxygen concentration in winter appear more like the fall profile?

Individual atoms within water molecules are held together by covalent bonds.

Aquatic organisms are unable to tolerate low pH conditions largely because acidic waters contain high concentrations of ________.

The upper layer of warm,low-density water of an open body of water is called the ________.

Daily and seasonal fluctuations in temperature,salinity,and dissolved gases are most extreme in

In a stream that flows over limestone you would predict there would be higher

Why are fall and spring temperatures colder in deeper areas of lakes than they are in the winter?

In panel B of the figure,what might cause the Aragonite saturation state to begin increasing?

The ________ of water is the amount of heat that is required to raise the temperature of water one degree Celsius.

The rotation of Earth on its axis is the driving force behind the water cycle.

The physical movements of water caused by the gravitational pull of the Sun and the Moon are called ________.

In comparison with the epilimnion of a lake,the water of the hypolimnion is

Concentrations of solutes are greatest in

The place where freshwater streams and rivers meet the sea and mix with saltwater is called a(n)________.

A region of ________ occurs where deep waters of the ocean move upward to the surface.

You are monitoring a section of a creek that has recently been logged.What would you predict about the change in the average water temperature in that section?

Saltwater has a higher concentration of solutes than freshwater.

The primary ions that contribute to the salinity of ocean waters are

An organism that lives in a deep marine environment may exhibit all the following physical characteristics,except