Phylum Chordata
The Phylum Chordata includes animals that have a notochord and a hollow nerve cord some point in their life. A notochord is a flexible rod in between the nerve cord and digestive track. This is a diverse phylum that includes about 43,700 speices. Phylum Chordata is split into three subphylums, which are Urochordata (tunicates), Cephalachordata (lancelets), and Vertebrata (vertebrates).
Vertebrates:
How are vertebrates distinguished among other Chordates- Invertebrate Chordates are not often more than a few centimeters long and live in salt water. In Vertebrate Chordates, the notochord develops into a backbone during the embyo's growth period.
Killer Whale
Hummingbird
Scientific Name: Orcinus Orca
FACTS
-all have hair or fur covering their bodies
-tear and chew their food using teeth;have complete digestive systems
-mammary glands produce milk that feed yound mammals​
-
Vertebrate
-
Bilateral Symmetry
Scientific Name: Trochilidae
FACTS
-have stiff feathers that enable them to move through the air (light-weight bones)
-birds have beaks/do not chew their food; their digestive systems include gizzards and organs that help grind food into smaller pieces
-lay fluid-filled eggs with hard shells and feed/care for their young
-
Vertebrate
-
Bilateral Symmetry
Salamander
Swordfish
Scientific Name: Caudata
FACTS
-skin is moist and smooth, and their hearts have three chambers
-lay eggs that do not have hard protective coveringd, or shells
-many species/the young, have different body forms than the adults do
-
Vertebrate
-
Bilateral Symmetry
Scientific Name: Xiphias Gladius
FACTS
-have gills for absorbing oxygen gas from water and paired fins for swimming
-fish are grouped into one of the three classes
-
Jawless Fish
-
Cartilaginous Fish
-
Bony Fish
-most fish spend their entire lives in water
-
Vertebrate
-
Bilateral Symmetry
Sea Turtle
Scientific Name: Chelonioidea
FACTS
-their skin is water proof and covered in scales
-they lay fluid-filled eggs with leathery shells on land
-most reptiles have three-chambered hearts/also have lungs throughout their lives
-
Vertebrate
-
Bilateral Symmetry