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- What are the structural adaptations of freshwater leech from marine ones? In terms of anatomy and physiology, elaborate on how leeches are used in medical fields.How does digestion in beings of the phylum Annelida work and which type of digestive system do they have?What adaptations does the squid exhibit that adapt it to its lifestyle? Would it be a successful infaunal benthic inhabitant? Why?
- Provide two characteristics of the digestive tract for an animal that eats mainly termitesDescribe the feeding mechanism of sponges and identify how it is different from other animals.Find illustrations of the excretory and digestive system of Phylum Platyhelminthes, Phylum Annelida and Phylum Chaetognatha. Explain how each differ from each other.