Author Question: What is the greatest source of oxygen in deep water? a. The respiration from bacteria b. The lack ... (Read 71 times)

bobbie · **on:** Aug 22, 2018

What is the greatest source of oxygen in deep water?
a. The respiration from bacteria
b. The lack of large quantities of organisms
c. Chemosynthesis
d. Polar waters that have sunk from the surface

Question 2

What is the colligative property of osmotic pressure?
a. The pressure exerted on biological membranes from the atmosphere
b. The pressure exerted on biological membranes from salinity differences outside the cells
c. The pressure exerted on biological membranes during temperature changes of water
d. The pressure exerted on biological membranes when surrounding waters phase change

Ksh22 · **Reply #1 on:** Aug 22, 2018

Answer to Question 1

ANS: D
Polar waters are very rich in nutrients, including oxygen. This water sinks from the surface in these
regions and then circulated through deep water. Information can be found in the section Gases
Dissolve in Seawater

Answer to Question 2

ANS: B
Osmotic pressure rises with increasing salinity. This allows for the transmittance of water in and out of
cells. Information can be found in the section Seawater Consists of Water and Dissolved Solids.