Lesson 18: Invertebrates

Lesson 18 provides a survey of common marine invertebrates including sponges, corals, lobsters, crabs and sea stars. It provides students with the basic taxonomy of major invertebrate phyla. In the activity, students demonstrate different sampling methods used to study the ocean using a photo of a deep sea community. Students compare different sampling techniques and identify challenges to surveying marine life.

第18课对常见海洋无脊椎动物进行了概览，涵盖海绵、珊瑚、龙虾、螃蟹与海星。本课程为学生讲授主要无脊椎动物门的基础分类学知识。在本次活动中，学生将借助一张深海群落的照片，演示用于海洋研究的各类采样方法。学生将对比不同采样技术，并识别海洋生物调查面临的各类挑战。