Skachat Besplatno Prezentatsii - Po Biologii 7 Klass Briukhonogie Molliuski

Include a labeled drawing of the Radula and the Internal Organs .

Lives in freshwater, breathes atmospheric air.

Several pairs of nerve nodes (ganglia) connected by bridges. 📂 Slide 4: Reproduction and Development Include a labeled drawing of the Radula and

Open system with a heart (one ventricle and one or two auricles).

A broad, flat sole used for crawling via muscular waves. 📂 Slide 4: Reproduction and Development Open system

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

Evolutionarily lost their shells to move into tight spaces. Species: Over 100,000 known species

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.