Phloem
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✎ Suggest a correctionReports on the partially understood relationship between the function of phloem and the structure of sieve tubes. Scans prepared views of organisms using both an electron microscope to illustrate the position, appearance and differentiation of sieve tubes to determine their internal resistance to flow.
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- A-V Online (National Information Center for Educational Media). CD-ROM database of educational and documentary media, compiled and maintained by the National Information Center for Educational Media (NICEM). — title, year, creator, length, format, sound, description
- 16mm Filmography (legacy record) — creator, catalog record
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