BIO153H5 Study Guide - Final Guide: Pedal Disc, Clitellum, Jellyfish
Document Summary
Made from symbiotic association between algae (cyanobacteria and ascomycete). Upper cortex, algal layer, medulla and lower cortex. Basidia (found on the gills which is held on the pileus (cap) which is held by the stalk) Soredia (composition of algae colonies surrounded by fungi) Filter feed using pore (ostia) and exit through osculum. Often look flashy and are in y shape. One opening and between two layrs is jelly called mesoglea. Can be in polyp (sessile) or medusa (moving) form. Protostomes (mouth first) grow incrementally filter feed with structure called lophophore. Mouth surrounded by tentacles, mouth has a beak called gonads. Upper end (oral disc) lower end (pedal disc) Have 2 lateral nerve cords near the side of the body linked o each other. Attach to host with ventral and oral suckers. Have 3 chambered heart, with open circulatory system with haemolymph. Body in 3 parts: the head, the muscular foot and the visceral body.
