Biology (Science, Grade 11)

Pheretima system by system — digestion, circulation, the septal nephridia that do its excreting, and the copulation and cocoon a diagram question asks for.

1. 1External features and body wall
2. 2Digestive and circulatory systems
3. 3Excretion — nephridia; nervous system
4. 4Reproduction — copulation and cocoon formation