MICROORGANISMS: BENEFICIAL ACTIVITIES

Duration: 15 min

Year Published: 1958

Format: 16mm

Color: B&W

Sound: Sound

Description: 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 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

Metadata Source:Educational film guide. Supplements (1959-62)