Marine predators, some with highly toxic venom. 📂 Slide 6: Ecological and Economic Importance

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

Lives in freshwater, breathes atmospheric air.

A broad, flat sole used for crawling via muscular waves.

Biology, 7th Grade Topic: Diversity, Structure, and Role in Nature 📂 Slide 1: Introduction Definition: Gastropods are the largest class of mollusks. Species: Over 100,000 known species. Habitat: Occupy sea, freshwater, and land. Key Feature: A single, often spiral-shaped shell. 📂 Slide 2: External Structure

Skachat Besplatno Prezentatsii Po Biologii 7 Klass Briukhonogie | Molliuski

Marine predators, some with highly toxic venom. 📂 Slide 6: Ecological and Economic Importance

Includes a radula (a "grater" with chitinous teeth) to scrape food. Respiration: Aquatic species: Gills . Terrestrial species: A lung (a modified mantle cavity). Marine predators, some with highly toxic venom

Lives in freshwater, breathes atmospheric air. breathes atmospheric air. A broad

A broad, flat sole used for crawling via muscular waves. 7th Grade Topic: Diversity

Biology, 7th Grade Topic: Diversity, Structure, and Role in Nature 📂 Slide 1: Introduction Definition: Gastropods are the largest class of mollusks. Species: Over 100,000 known species. Habitat: Occupy sea, freshwater, and land. Key Feature: A single, often spiral-shaped shell. 📂 Slide 2: External Structure