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Invertebrate ChordatesHemichordata Urochordata Cephalochordata
Hemichordates Deuterostomes Gill slits Dorsal nerve cord
Classes of HemichordatesEnteropneusta Acorn worms Shallow marine animals Pterobranchia Rhabdopleura Colonial, send out feeding zooids
Phylum Chordata All chordates are deuterostomesAt some time in their life, all chordates have: Notochord Pharyngeal gill slits Dorsal, hollow nerve cord Postanal tail
Subphylum UrochordataSea squirts or tunicates Larvae show the characteristics of chordates Adults lose notochord, nerve cord, and tail Only animals to have cellulose in their bodies!
Tunicates: Are filter feeders Do not have complex nervous systemsOften form large colonies Are monoecious
Subphylum CephalochordataLancelets (Amphioxus) Notochord runs from head through tail Muscles can contract the notochord Live partially buried in marine sediment Filter feeders Dioecious
Vertebrate Anatomy – Unit 1
Chordata: Urochordata and Cephalochordata
PHYLUM CHORDATA THREE COMMON CHARACTERISTICS
Origin of Chordates BIOL 495 – Chapter Two.
Share characteristics with echinoderms and chordates
Hemichordata and Invertebrate Chordates
Contents Jenna Hellack Fall 2000 Lesser Deuterostome Phyla and Phylum Chordata(through agnathans)
Roots We deuterostomes develop butt-first, and we’re proud of it.. But not many other clades of animals develop this way…
Deuterostomes. Phylum Echinodermata Water vascular system Starfish moving view from aboral surface Starfish moving view from oral surface.
Hemichordata Invertebrate Chordates
Phylum Chordata Chordates. Basic Overview Four main qualities make a Chordate. At some time during their development (humans included) Chordates have.
Nonvertebrate Chordates, Fishes, and Amphibians. What Is a Chordate? Members of the phylum Chordata are called chordates. A chordate is an animal that.
Invertebrate Diversity III The coelomate deuterostomes: Phylum Echinodermata Phylum Hemichordata Phylum Chordata Subphylum Urochordata Subphylum Cephalochordata.
Chordates are Bilaterian Deuterostomes. Phylogeny (cont.) 5 Classes (before tetrapods) 1.Agnatha Jawless fish; hagfish and lampreys 2.Chrondrichthes Sharks,
To be classified into this Phylum, members must have the following characteristics at some point in their development 1. Hollow Dorsal Nerve Cord Nerve.
Chordates An Introduction. Kingdom Animalia- All inverts & verts 1.Phylum Chordata: All have nerve cords. 3 subphyla : A- Urochordata (tunicates aka sea.
What are protochordata
Kingdom Animalia Phylum Chordata Chapter The Tunicates, Lancelets and Vertebrates,
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