chapter 13 part 3 of 3 phylum echinodermata. phylum: echinodermata “spiny skinned” animals...
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Chapter 13 Part 3 of 3PhylumEchinodermata
Phylum: EchinodermataSpiny Skinned AnimalsSea Stars, Sea Urchins, Sea Cucumbers & Sand Dollars
Phylum: EchinodermataCharacteristicsInvertebrate- Aquatic most are marinePentaradial Symmetrical usually in multiples of 5Most with spiny hard endoskeletonInternal Water Vascular System control the tube feetSessile they crawl on the bottomAbility to regenerate
ClassificationPhylum Echinodermata is broken into several classes 3 of which we will learn as representative samples of the phylum:Class Asteroidea StarfishClass Echinoidea Sea Urchins & Sand DollarsClass Holothuroidea Sea Cucumbers
Water Vascular SystemHundreds of tube feet are individually controlled by the Water Vascular System.Need to know the flow of water into & through the system:Madreporite Stone canal Ring Canal Radial Canal Lateral Canal Ampullae Tube Feet
I think thats it no more for now!!