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Midterm

BIOL 202 Study Guide - Midterm Guide: Gastrovascular Cavity, External Fertilization, Dioecy


Department
Biology
Course Code
BIOL 202
Professor
Laurene M Ratcliffe
Study Guide
Midterm

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Phylum Cnideria (jelly Fish & corals)
Symmetry
Radial symmetry (biradially)
Skeletal Structure
Hydrostatic skeleton
Nonmuscular/Muscular Movement
Jet propulsion
Cilia
Nervous System
Nerve net (tactile sensory)
Nerve cells located below epidermis, near mesoglea, interconnect to form
two-dimensional nerve net
Sensory Organs
Georeceptors
Jelly!sh use air bubbles and cilia
Chemoreceptors
Receptors for perceiving touch as well
Gas Exchange
Di$usion
Transport System
Gastrovascular
External water, passive di$usion at the cell
Feeding
Predators
oEat mostly small crustaceans, sometimes small !sh
Digestion
Gastrovascular cavity
Intracellular digestion
Reproduction
Dioecious
External fertilization
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