Skachat Besplatno Prezentatsii Po Biologii 7 Klass Briukhonogie Molliuski Link

Part of the food chain; decomposers of organic matter. For Humans: Food source: Escargot (snails). Pests: Slugs damage agricultural crops. Medicine: Source of mucus for cosmetics and research.

Include a labeled drawing of the Radula and the Internal Organs . Part of the food chain; decomposers of organic matter

Includes a radula (a "grater" with chitinous teeth) to scrape food. Respiration: Aquatic species: Gills . Terrestrial species: A lung (a modified mantle cavity). Part of the food chain