What is a hardship for small organisms that are associated with living on a sandy beach?
a. Sand has sharp, jagged edges.
b. Capillary forces can pin organisms down within the sand.
c. Organisms have a hard time finding a firm footing when burrowing.
d. All of these choices
ANS: D
These factors are only a few of the hardships organisms must deal with on sandy beaches. This is in
addition to the normal problematic factors associated with the intertidal zone. Many of the organisms
must also find ways to distinguish food particles from grains of sand. There is also the issue of
predators being able to excavate them from the sand. Information can be found in the section Examples
of Marine Communities
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