How do intertidal organisms separate themselves?
a. Zones based on the substrate brought in from the tides
b. Zones based on the amount of submergence or emergence in water
c. Zones based on the height of the tides
d. Zones based on the amount of nutrients brought in from the tides.
ANS: B
Organisms can tolerate varying amounts of exposure to air rather than the normal ocean conditions.
They sort themselves into zones based on their requirement of water. There can be three of more
distinct bands in intertidal zones. Information can be found in the section Tidal Patterns Can Affect
Marine Organisms
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