Lecture 14 THE BIOSPHERE

Jan 25, 2026

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This lecture focuses on the intertidal zone along rocky and sandy coastlines, highlighting its unique challenges for inhabitants who experience alternating exposure and submergence. The rocky shores are categorized into three vertically arranged zones: the upper littoral, mid-littoral, and lower littoral. Each zone has distinct ecological characteristics and varieties of life adapted to the harsh conditions of environment. Understanding these zones is crucial for marine biology and conservation efforts.

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Lecture 14 THE BIOSPHERE

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Lecture 14THE BIOSPHERE
Rocky and sandy coastlines • Intertidal zone; along rocky and sandy coastlines. • Intertidal zone inhabitants are alternately exposed & submerged; existence is difficult. • Rocky shores have three vertically arranged zones: • Upper littoral • Mid-littoral • Lower littoral.