Biology 3229F/G Lecture Notes - Lecture 1: Oligochaeta, Scleractinia, Cnidaria
5 Mar 2015
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Document Summary
Most cnidarians are jelly like, this order is oddly hard and have calcium skeleton, were the polyp sits on the polyps are small but are clustered in thousands hermatypic are reef builders, non hermatypic are not zooxanthellae give the pigments, white coral are bleached/dead from zooxanthelae loss corals are carnivores they also produce a mucus layer that can stick prey slow growers are brain coral, fast growing will be stag. Hydrozoan adult female polyp that takes in sperm and spits out zygote slide 37, the bubbles are stingers and the feet" are suckers this type has male and female fertilization slide 40 is a colonial type of cnidarian that has specialized sexual polyps the man of war has gas in its bell that floats on the top to use wind as motion (polyp stage) the tentacles hang and catch prey as it floats: gonophore is reproductive, dactylozooid is defensive, gastrozooid eating last slide is study purposes.
