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Phylum Porifera Who lives under a pineapple under the sea? Not Sponges!!!!!!!!!!!!!! Characteristics of Sponges Lives in in aquatic environments, mostly marine environments They don’t have any organs Has no nervous system All are filter feeders Reproduce sexually or asexually Anatomy Osculum Colar cell Pore cell Spicules Mesenchyme is a gel layer around the outside Digestion Cells absorb nutrients Their holes which water passes through Green Algae can attach to them and give them nutrients Capture small crustaceans and cells will begin digestion They can not pursue their food Respiration Their cells breath for them Water improves the breathing as well Pores of sponges absorb the water Starts the breathing process Water travels through the pores Oxygen containing water must travel throughout the sponge Internal Transport Pores let water travel through body No blood (circulatory system) It’s all water based Simple Diffusion O2 take from water CO2 released into water Excretion Gas expels into the surrounding water and kills the waste products Using its pores helps kill waste No urinary system It uses carbon dioxide They smell bad because of nitrogen substances Response Chemical defenses Carbon dioxide Nitrogen Needle –like spicules Regeneration Movement Sessile (do not move) They sway in the water but very slowly The water causes movement When their young they move around m0re Adult sponges don’t have to because of defenses Reproduction Asexual Reproduction Budding Pieces of sponges regenerate into a new one Fragmentation Sexual Reproduction Male sponge would release a sperm into the water then it goes to the female sponge Examples of sponges .Glass Sponges .Calcareous Sponges .Demospongiae .Chicken Liver .Black-ball sponge Etc………. Facts They lack tissues, neurons and a gut They can regenerate themselves Sponges can contain 16,000 other animals inside of it They are being used to find a cure for cancer A new type of sponge is found every year. Work cited http://www.earthlife.net/inverts/porifera.html http://www.enchantedlearning.com/subjects/invertebrates/sponge / http://w3.shorecrest.org/~Lisa_Peck/MarineBio/syllabus/ch7inverte brates/Invertwp/2007/chelsea/dig.html http://sponges001.blogspot.com/2007/02/respiration.html https://sites.google.com/site/spongesrocks/respiration http://voices.yahoo.com/5-fun-facts-sponges-11202176.html http://www.infobarrel.com/10_Facts_About_Sponges
