topic 5 stuff

• platylhelmintha and cnidaria have mouth but no anus
• mollusca has non-visible segmentation
• annedilia (earthworms) are very segmented
• cnidaria is the only one with radial symmetry
• porifera have no mouth and NO anus
• porifera, cnidaria and platylhelmintha have no segmentation
• cnidaria eg jelly fish and corals
• porifera has no symmetry
• everything except porifera and cnidaria has bilateral symmetry
• liverworts (bryophyta) have flattened thallus