Chordates What is a chordate Members of the

Chordates

What is a chordate? Members of the KINGDOM ANIMALIA and the PHYLUM CHORDATA They have a dorsal, hollow nerve cord and a notocord

Chordates have ●pharyngeal pouches (become gills) ●Tail - extends beyond anus

Most chordates are vertebrates (SUBPHYLUM VERTEBRATA) Chordates that are NOT vertebrates: Sea Squirts or Tunicates

All vertebrates are chordates. . . . But not all chordates are vertebrates. NO WAY!!!!

Chordate Anatomy

What is a vertebrate? -Animals with a backbone (and endoskeleton) -an organism with a dorsal nerve cords that develop into a spinal cord protected by vertebrae

Front end of spinal cord develops a brain

Quick Check 1. Members of the Phylum _____ have a dorsal hollow nerve cord. 2. During development, the pharyngeal pouches will become ______ 3. All chordates belong to the animal kingdom. (T or F ) 4. All chordates are vertebrates. (T or F ) 5. You are more closely related to a sea squirt than to an earthworm. 5. What are two animals that are chordates, but not vertebrates? 6. An animal with a backbone is called a _____.

Crash Course in Chordates - 12 minutes

Vertebrate Classes ●Jawless Fish (lamprey, hagfish) ●Cartilage Fish (sharks, rays…) ●Bony Fish (salmon, catfish, goldfish…) ●Amphibians (frogs, salamanders…) ●Reptiles (lizards, turtles…) ●Birds (sparrows, hawks…) ●Mammals (humans, whales, cats. . )