Which tilde process makes it challenging for organisms to survive in coastal areas

When the tide recedes, some coastal areas are exposed to air for many hours.

Explanation:

Unless updated to live both on land and in water, the tidal zone can be a challenging place for an organism to survive. This is because during low tide, the ocean’s shoreline recedes deep into the ocean exposing the continental shelf before returning during high tide. Therefore if an organism adapts to water, it becomes exposed (and becomes vulnerable) during low tides. If an organism adapts to land,  it becomes vulnerable during high tides. See the quagmire?

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