100+ Cephalochordates PowerPoint (PPT) Presentations, Cephalochordates PPTs

Cephalochordates - PowerPoint PPT Presentation

Vertebrate Origins

Vertebrate Origins. Vertebrates are but a single subphylum within the chordates. What defines a chordate? Notochord at some stage of development. Dorsal hollow nerve cord. Pharyngeal gill slits present at some stage of development

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509 views • 42 slides

Origin and Early History of the Vertebrates

Origin and Early History of the Vertebrates. The Protochordates as Ancestors. Some living chordate groups may resemble the primitive vertebrate ancestors ( protochordates ). Hemichordates. Burrows in marine sediments (acorn worms) (+) pharyngeal gill slits; tornaria larvae;

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703 views • 24 slides

Chordates

Chordates. By Olivia, Eva, and Anais. [Untitled photograph of a giraffe]. ( n.d. ). Retrieved February 20, 2014, from http ://wakpaper.com/large/Giraffes_wallpapers_331.jpg. Elephants. ( n.d. ). Retrieved February 25, 2014, from http://www.wildaid.org/elephants.

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434 views • 21 slides

Introduction to Chordata

Introduction to Chordata. Subphylums Urochordate & Cephalochordates. Phylum Chordata- . Phylum chordata. 4 major characteristics of Chordates?. Classification . Domain Eukarya Kingdom: Animal Phylum: Chordata Subphylum Urochordata Ex: sea squirts Subphylum Cephalochordata

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437 views • 9 slides

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'Cephalochordates' diaporamas de présentation

Cephalochordates - PowerPoint PPT Presentation

Vertebrate Origins

Origin and Early History of the Vertebrates

Chordates

Introduction to Chordata