A) High turbidity near the sediment-water interface
B) Anoxic pore water in the sediment
C) Predation
D) A very low food supply

A) Tend to be anoxic right at the surface
B) Have low water content
C) Have very high water content far below the sediment-water interface
D) Have very high water content near the sediment-water interface

A) Is a negative effect caused by predators eating prey
B) Is a negative effect caused by suspension feeders depleting the water column of food for deposit feeders
C) Is a negative effect caused by deposit feeders making the environment unsuitable for suspension feeders
D) None of the above