Skachat Besplatno Prezentatsii Po Biologii 7 Klass Briukhonogie Molliuski -

Many marine species (separate males and females). Fertilization: Usually internal. Development: Direct (small snails hatch from eggs). Indirect (larval stage in some marine species). 📂 Slide 5: Diversity of Gastropods Grape Snail: A common land herbivore.

Lives in freshwater, breathes atmospheric air.

Snails carry parasitic worms (e.g., Liver Fluke). 💡 Tips for your presentation: