Answer :
Final answer:
The intertidal zone refers to the area between high and low tide marks that is affected by tidal changes. It is characterized by a unique environment where diverse marine organisms thrive in both submerged and exposed conditions. This zone is crucial for coastal ecosystems, providing habitat and resources for various species.
Explanation:
Understanding the Intertidal Zone
The term that relates to the movement between the low and high tide marks is the intertidal zone. This zone is the oceanic region that is closest to land and is characterized by areas that are submerged during high tide and exposed during low tide.
Typically, people visualize this area as a sandy beach; however, it can also consist of rocky or muddy substrates. The intertidal zone experiences significant variations due to tides, making it a unique environment where organisms must adapt to both wet and dry conditions. For example, species such as barnacles and sea stars thrive in this zone, having evolved to withstand periods of exposure to air as well as the challenges posed by wave action.
In summary, the intertidal zone is essential for coastal ecosystems, providing habitat for diverse marine life and serving as a transition area between the ocean and land.
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