Insects helpful to man
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Shows how humans benefit from the the activities of some insects. Includes a discussion of the benefits derived from bees, silkworms, maggots, dung beetles, lady bugs and ichneumon flies. Suitable for lower secondary level.
Sources
- 16mm Filmography (legacy record) — title, description, catalog record
Original permalink · Record added 2026-01-23 03:38:56