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Stinging-celled animals, coelenterates [motion picture].

Published:
Chicago, IL : Encyclopaedia Britannica Educational Corporation, [1962]
Copyright Date:
©1962
Physical Description:
1 videocassette (16 min.) : sound, color ; 1/2 in.
Additional Creators:
Buchsbaum, Ralph, 1907-2002 and Encyclopaedia Britannica Educational Corporation

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Summary:
Describes the distinguishing characteristics of the three classes of coelenterates, focusing on food digestion and reproductive processes. Documents an experiment showing that coelenterates eat in response to a chemical, glutathione, which is found in all living organisms. Body plan is illustrated, and a detailed description and experimental analysis of the hydra are offered. From the EBF Biology series. Ralph Buchsbaum.
Subject(s):
View MARC record | catkey: 443903