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Monday, September 2, 2013

Outline about echinoderms, birds, and mammals

outline about echinoderms, birds, and mammals !!!! Echinoderms, Birds, and Mammals Chapters: 34, 39, 40 I.         Diversity- Echinodermata (Spiny-Skin)         A.         Characteristics                  1.          put up with metamorphosis from free- swimming larva to rear end dwelling adult. five radii(pentaradial symmetry)                  2.         endoskeleton, atomic number 20 plates, include protruding spines                  3.         water- vascular system (water- filled canals)                  4.          subway feet, aid in survivement, feeding, respiration, and excretion                  5.         no circulatory, respiratory or excretory systems                  6.         nervous system, but no head or brain                  7.         deuce sexes, reproduce sexually or asexually         B.         Evolution and Classification                  1.         500 one thousand million years ago in Cambrian period                  2.         6,000 species into five mannequines                           a.         class Crinoidea (Lily- Like)                                    (1)         sessile, long stalk give to ocean bottom or rock                                    (2)         mouth doesnt face ocean bottom                                    (3)         five arms fraction into more arms, up to cc in some feather- wizard species                                    (4)         sticky tube feet, at end of each arm, trance fare and respire                           b.         Asteroidea (Star- Like)                                    (1)         sea stars, starfish                                    (2)         prey on oysters, clams, otherwise organisms used as pabulum for humans                           c.
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        Ophiuroidea (Snake- Like)                                    (1)         basket stars and toffee stars                                    (2)         largest echinoderm Class                                    (3)         long narrow arms, stir up quickly                                    (4)         feed by raking in forage with arms, tube feet, take into custody food with tube feet or mucus between spines                           d.         class Echinoidea (Hedgehog- uniform)                                    (1)         endoskeleton called test                                    (2)         grind food with jaw- like Aristotles Lantern                                    (3)         tube feet for motion, teeth- like structures for feeding                                    (4)          spitefulness for protection                           e.         Holothuroidea          ... If you want to compress a full essay, recite it on our website: Orderessay

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