Skachat Besplatno Prezentatsii Po Biologii 7 Klass Briukhonogie Molliuski May 2026

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

Ask the class why a snail leaves a "slime trail" (Answer: To reduce friction and protect the foot). If you'd like, I can help you: Write a quiz for the final slide. Provide a script for what to say while presenting. Find specific Latin names for the species mentioned. Includes a radula (a "grater" with chitinous teeth)

Provides protection; can be coiled (right or left-handed) or reduced (as in slugs). 📂 Slide 3: Internal Anatomy breathes atmospheric air.

Several pairs of nerve nodes (ganglia) connected by bridges. 📂 Slide 4: Reproduction and Development Includes a radula (a "grater" with chitinous teeth)

Lives in freshwater, breathes atmospheric air.