MICROORGANISMS: BENEFICIAL ACTIVITIES
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Contrasts various related activities of microorganisms. Indicates by animation, that only a small number of all microorganisms are harmful, while much greater numbers are beneficial or essential. Shows the means whereby microorganisms produce changes in their environment and cause the formation of new substances.
Complete catalog record
Source: IndU
Interest level: sh-c
Guide: Guide
Price: $75, rent $3.75; color $150, rent $5.50
Format: sd b&w
Catalog numbers: LC card Fi A 59-25; EFLA evaluation card No. 3680
Interest level: sh-c
Guide: Guide
Price: $75, rent $3.75; color $150, rent $5.50
Format: sd b&w
Catalog numbers: LC card Fi A 59-25; EFLA evaluation card No. 3680
Sources
- Educational film guide. Supplements (1959-62) — title, year, length, format, color, sound, description, catalog record
Record added 2026-07-06 16:23:54