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Home arrow Catalog arrow Branches on the Tree of Life: The Biology of... arrow The Biology of Chordates
The Biology of Chordates
The Biology of Chordates
 The Phylum Chordata includes tunicates, sea lancelets, hagfish, and all familiar vertebrate animals. This program explores how these seemingly diverse animals evolved and how the group is unified by four characteristic structures: a hollow dorsal nerve chord, a supportive notochord, gill slits, and a post-anal tail. Key milestones in vertebrate evolution included improvements in swimming and feeding, the evolution of paired fins and a primitive lung, movement onto the land, and the amniotic egg.
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BT223DVD 21 minutes 1-930527-78-0$68.00
BO123VHS 18 minutes 1-930527-77-2$55.00
BT623Windows Download 18 minutes $55.00
BT8231 Year Streaming 18 minutes $9.95

 


Copyright Year 2006
Closed Captioned? Yes
Audio Described? No
Downloadable Files:
  • Teaching Guide (247.78 KB)
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    The Phylum Chordata includes tunicates, sea lancelets, hagfish, and all familiar vertebrate animals. This program explores how these seemingly diverse animals evolved and how the group is unified by four characteristic structures: a hollow dorsal nerve chord, a supportive notochord, gill slits, and a post-anal tail. Key milestones in vertebrate evolution included improvements in swimming and feeding, the evolution of paired fins and a primitive lung, movement onto the land, and the amniotic egg.

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