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Gooseneck barnacles in rock crevices

(Complete Item Description)

Abstract:: Gooseneck barnacles do not move and rely on surrounding waters for food and nutrients. They have strong, hard, and sharp shells that keep predators from walking on them. They resist drying out and are found in all the intertidal zones.

Subject:: Science and Technology
Grade Level:: Primary, Secondary
Collection:: Video and Image Data Access

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Green seaweed attached to the rock and exposed during low tide

(Complete Item Description)

Abstract:: Seaweeds have unique adaptations to help them survive intense wave action. Sea weeds lack true roots, stems, and leaves, but are anchored by root like structures. Seaweeds are important producers and provide food and shelter to many animals.

Subject:: Science and Technology
Grade Level:: Primary, Secondary
SubTopics:: Plants and Forests
Collection:: Video and Image Data Access

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Intertidal Zone

(Complete Item Description)

Abstract:: This video segment from NOVA: "The Sea Behind the Dunes" explores the community of organisms that exists in the New England tidal marsh.

Subject:: Science and Technology
Grade Level:: Primary, Secondary
Collection:: Teachers' Domain

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View of the rocky intertidal zone in Central California

(Complete Item Description)

Abstract:: The three main zones of the intertidal area are the upper, middle, and bottom zones. The number of organisms in a zone is greatest the more time the zone is spent underwater.

Subject:: Science and Technology
Grade Level:: Primary, Secondary
Collection:: Video and Image Data Access

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The middle intertidal zone

(Complete Item Description)

Abstract:: The middle intertidal zone is submerged during high tide and only exposed during low tides. This zone has the most moderate conditions of the zones and has many algae, sea anemones, mollusks, and crustaceans.

Subject:: Science and Technology
Grade Level:: Primary, Secondary
Collection:: Video and Image Data Access

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The upper intertidal zone

(Complete Item Description)

Abstract:: The upper intertidal zone is exposed most of the time and will become submerged only during high tide. This zone is least abundant of the intertidal zones but contains some mollusks, barnacles, and other animals adapted to avoid drying out.

Subject:: Science and Technology
Grade Level:: Primary, Secondary
Collection:: Video and Image Data Access

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