Chordates

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Dorsal nerve cord - The dorsal nerve cord is one of the embryonic features unique to chordates, along with a notochord and pharyngeal slits. The dorsal nerve cord is a hollow cord dorsal to the notochord.

Pharyngeal gill slit - The pharyngeal gill slit is a characteristic of Chordates. Only found in the embryos, these gills disappear in the development stage.

Notochord - The notochord is a flexible, rod-shaped body found in embryos of all chordates. It is composed of cells derived from the mesoblast and defining the primitive axis of the embryo.

List of chordate orders - This is a list of biological orders in the scientific classification of chordates.

Suggested Web Sites

Biological Diversity: Animals - Outlines the evolutionary history of animal groups from the simple coelomates to the chordates and the various vertebrate classes, with diagrams and photographs.

The Evolution of Left-Right Asymmetry in Chordates - Article by Clive Boorman and Sebastian Shimeld discussing directional asymmetric morphology in which sidedness is fixed for a population, species or higher taxon.

University of Michigan Bird Division - Collection of informational bird resources including research on phylogenetic relationships, evolution and behavior.

Source: BazSites.com

Web Links

Phylum Hemichordata - ... Fourteen additional phyla, including all generally recognized phyla * Discussion of newly discovered animal phylum?Cycliophora * Additional coverage of chordate development, including embryogeny of tunicates * Expanded coverage of several phyla based on recent research Atlas of Invertebrate Reproduction ... phylum of bacteria that obtain their energy through photosynthesis. phylumhemichordata Carboniferous. include of Hemichordata graptolitoides. in divided called chordates. the called Hemichordata and became the Hemichordata are deuterostome extinct phylum considered sister One back and to ...

Amphibian in Zoology - ... coverage of arthropods, fish, reptiles, amphibians, birds, aspects and illustrated full appendices QL supported amphibians 605-739.8.........Chordates. with will and everything anecdotes an A of impossibly (including those clear revised comprehensive useful birds, living the ... Zoology 1-355.............General (including geographical distribution) 360-599.82........Invertebrates 461-599.82.......Insects 605-739.8.........Chordates. It is illustrated with amphibian in zoology. Picture of Reptile and Amphibian - Picture of Reptile and Amphibian ...

Reproduction System - ... the existing data is the apparent ubiquity of condition-dependent mating tactics. Comprehensive, up-to-date coverage of chordate development, including embryogeny of tunicates * Expanded coverage of chordate development, including embryogeny of tunicates * Expanded coverage of chordate development, including embryogeny of tunicates * Expanded coverage of ...

Phylum Bryophyta - ... Fourteen additional phyla, including all generally recognized phyla * Discussion of newly discovered animal phylum?Cycliophora * Additional coverage of chordate development, including embryogeny of tunicates * Expanded coverage of several phyla based on recent research Atlas of Invertebrate Reproduction ... in animal phyla, including all generally recognized phyla * Discussion of newly discovered animal phylum?Cycliophora * Additional coverage of chordate development, including embryogeny of tunicates * Expanded coverage of chordate development, including embryogeny of tunicates * Expanded coverage of ...

Kingdom Animalia Phylum Chordata - ... Fourteen additional phyla, including all generally recognized phyla * Discussion of newly discovered animal phylum?Cycliophora * Additional coverage of chordate development, including embryogeny of tunicates * Expanded coverage of several phyla based on recent research Atlas of Invertebrate Reproduction ... See: Animalia Scientific classification What are the three elements of the kingdom. Comprehensive, up-to-date coverage of chordate development, including embryogeny of tunicates * Expanded coverage of chordate development, including embryogeny of tunicates * Expanded coverage of ...

Reproduction Antler - ... Fourteen additional phyla, including all generally recognized phyla * Discussion of newly discovered animal phylum?Cycliophora * Additional coverage of chordate development, including embryogeny of tunicates * Expanded coverage of several phyla based on recent research Atlas of Invertebrate Reproduction ... traits: larger bodies, aggressiveness, or even maintenance of a multiple-male "harem". Comprehensive, up-to-date coverage of chordate development, including embryogeny of tunicates * Expanded coverage of chordate development, including embryogeny of tunicates * Expanded coverage of ...

Animal Reproduction - ... Fourteen additional phyla, including all generally recognized phyla * Discussion of newly discovered animal phylum?Cycliophora * Additional coverage of chordate development, including embryogeny of tunicates * Expanded coverage of several phyla based on recent research Atlas of Invertebrate Reproduction ... Arthropod Relationships is a valuable collection of research published by international experts ... Comprehensive, up-to-date coverage of chordate development, including embryogeny of tunicates * Expanded coverage of chordate development, including embryogeny of tunicates * Expanded coverage of ...

Phylum Arthropoda - ... Fourteen additional phyla, including all generally recognized phyla * Discussion of newly discovered animal phylum?Cycliophora * Additional coverage of chordate development, including embryogeny of tunicates * Expanded coverage of several phyla based on recent research Atlas of Invertebrate Reproduction ... provides vital updates, including: * Fourteen additional phyla, including all generally recognized phyla. Comprehensive, up-to-date coverage of chordate development, including embryogeny of tunicates * Expanded coverage of chordate development, including embryogeny of tunicates * Expanded coverage of ...