Building bodies.
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| Other Authors: | , |
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| Format: | Book |
| Language: | English |
| Published: |
British Broadcasting Corporation,,
1981.
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| Subjects: | |
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| Item Description: | This programme from the "Life on earth" series explains that jellyfish, mollusks and horseshoe crabs are among the three types of marine invertebrates whose ancestry began 600 million years ago. |
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| Physical Description: | Videocassette (VHS)(54 min.) : sd., col., 1/2 in. |