Skachat Besplatno Prezentatsii Po Biologii 7 Klass Briukhonogie Molliuski Guide

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.

Several pairs of nerve nodes (ganglia) connected by bridges. 📂 Slide 4: Reproduction and Development Many marine species (separate males and females)

Features eyes and one or two pairs of tentacles (sensory organs). Many marine species (separate males and females)

Provides protection; can be coiled (right or left-handed) or reduced (as in slugs). 📂 Slide 3: Internal Anatomy Many marine species (separate males and females)

Use high-quality photos of a Grape Snail (Vinogradnaya ulitka) and a Slug (Slizen).