Phylum Chordata Classes Classification by Phuong Nguyen https://padlet.com/pnguyen2017/ae8xib31hz88 en-us 2017-01-20 13:27:48 UTC 2017-01-23 18:50:23 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Hotsun.png Actinopterygii (ray-finned fishes) pnguyen2017 https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148344851 2017-01-20 13:30:06 UTC https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148344851 Characteristics pnguyen2017 https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148345650
  • The fins are supported by rays.
  • Have a rigid skeleton
  • The swim bladder maintains buoyancy as they move up or down in the water. 
  • A gill cover is used to pump water through the gills, enabling the bony fish to breathe without swimming.
    • ]]>     2017-01-20 13:32:52 UTC https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148345650     Eels pnguyen2017 https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148443143
  • Have long, slender bodies.
  • The length of fully grown individuals ranges from 5 cm to 4 meters.
  • Lack ventral fins
  • Have no breast fins.
    • ]]>     2017-01-20 18:23:04 UTC https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148443143     Herrings and Anchovies pnguyen2017 https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148444655
  • The ventral fin is usually positioned well behind the breast fin. 
  • The tail fin is deeply forked. 
  • Lack a lateral line.
  • The body are usually very streamlined and build for high speed swimming. 
    • ]]>     2017-01-20 18:27:22 UTC https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148444655     Gadoids pnguyen2017 https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148446318
  • The breast fin is positioned behind the ventral fin.
  • Sensitive beard to sniff around in the gravel. 
  • The center of gravity is sometimes positioned close to the head.
  • Others have the center of gravity further back and a body shape designed for speed and a pelagic life.
    • ]]>     2017-01-20 18:32:05 UTC https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148446318     Sticklebacks pnguyen2017 https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148447623
  • Have no scales
  • Have the isolated spines in the dorsal fin.
    • ]]>     2017-01-20 18:36:43 UTC https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148447623     Clingfishes pnguyen2017 https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148448270
  • Tmall, less than 6 cm. 
  • Behind the head is a sucker that has replaced the pelvic fins. 
  • The sucker is used to cling to smooth surfaces, like rocks or shells. 
  • The skin is smooth and scale-less. 
  • The head is flattened
  •  The dorsal fin is small.
    • ]]>     2017-01-20 18:38:55 UTC https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148448270     Lamprids pnguyen2017 https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148449338
  • Have different bright colors and very long, dorsal rays. 
  • The body form varies: some are shaped like long ribbons, others more like circular disks.
    • ]]>     2017-01-20 18:42:19 UTC https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148449338     Anglerfish pnguyen2017 https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148450632
  • One of the dorsal spines resembles a fishing pole. 
  • Some of the deep sea anglerfish even have a light in the end of the pole used to attract small fish close to the enormous mouth. 
  • When the mouth is opened the fish is simply sucked in.


    • ]]>     2017-01-20 18:45:57 UTC https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148450632     Perch-like Fish pnguyen2017 https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148451603 2017-01-20 18:49:25 UTC https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148451603 Flatfish pnguyen2017 https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148452410
  • Live close to the bottom
  • When the larvae transform into small fishes, one of the eyes moves to the other side of the head. 
  • A right eyed flounder ends up with the eyes on the right side when the fish is placed upright with the mouth down.
    • ]]>     2017-01-20 18:51:37 UTC https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148452410     Salmon & Trout pnguyen2017 https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148452934
  • Slender
  • Have ventral fins placed far back on the body and a forked tail.

    • ]]>     2017-01-20 18:53:07 UTC https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148452934     Scorpion Fish pnguyen2017 https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148453986
  • Live close to the bottom. 
  • Not the best of swimmers
  • Often prefer to lurk on their prey from crevices or other hiding spots. 
  • They have spiny rays in their dorsal fins.

    • ]]>     2017-01-20 18:56:43 UTC https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148453986     Pipefish pnguyen2017 https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148454497
  • Have elongated bodies, encased in bony rings.
  • Bodies seem stiff.
  • Trust their camouflage rather than their ability to escape from dangerous situations. 
  • Standing in a vertical position they are easily mistaken for the stem of a plant.


    • ]]>     2017-01-20 18:58:41 UTC https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148454497     Aves (birds) pnguyen2017 https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148454831 2017-01-20 18:59:56 UTC https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148454831 Elasmobranchii (sharks and rays) pnguyen2017 https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148667301 2017-01-23 11:08:01 UTC https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148667301 Characteristics: pnguyen2017 https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148667392
  • Body is usually spindle shaped, with four divisions: head, neck, trunk, and tail,
  • Limbs are paired; forelimbs usually modified for flying; posterior pair variously adapted for perching, walking, and swimming; foot with four toes (two or three toes in some)
  • Epidermal covering of feathers and leg scales.
  • Fully ossified skeleton with air cavities; skull bones fused with one occipital condyle; each jaw forms a beak with no teeth.
    • ]]>     2017-01-23 11:08:26 UTC https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148667392     Neognathae pnguyen2017 https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148741371 2017-01-23 15:20:47 UTC https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148741371 Characteristics: pnguyen2017 https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148743273
  • Have no swim bladder. 
  • Have more than one pair of gills. 
  • A rigid dorsal fin and several series of teeth are other common features.
    • ]]>     2017-01-23 15:24:48 UTC https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148743273     Starry Ray pnguyen2017 https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148743812
  • A single row of large thorns run along the center of the back, all the way to the dorsal fin. 
  • The coloration is usually dominated by small brown, green or beige spots.
    • ]]>     2017-01-23 15:25:58 UTC https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148743812     Velvet-belly Lantern Shark pnguyen2017 https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148744309
  • The dorsal side is dark grey or black with a violet tint. 
  • On the light grey belly there are a set of light-producing organs helping the shark to see in deep waters.
  •  The nose is long and rounded. As most dogfish sharks 
  • Have two dorsal fins, each with a distinct spine on the leading edge. 
  • All dogfish sharks lack an anal fin.
    • ]]>     2017-01-23 15:27:07 UTC https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148744309     Characteristics: pnguyen2017 https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148745411
  • Known as “warm-blooded,” regulating their own body temperate which allows them to live in almost every climate on Earth.
  • Have hair on their bodies.
  • Produce milk to feed their babies. This allows them to spend more time with their young and teach them important skills they need to survive on their own.

    • ]]>     2017-01-23 15:29:36 UTC https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148745411     Mammalia (mammals) pnguyen2017 https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148745502 2017-01-23 15:29:50 UTC https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148745502 Reptilia (reptiles) pnguyen2017 https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148746415 2017-01-23 15:32:00 UTC https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148746415 Examples pnguyen2017 https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148746734 2017-01-23 15:32:42 UTC https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148746734 Characteristics: pnguyen2017 https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148747460
  • A few have secondarily lost their limbs (snakes and glass lizards) 
  • Have a protective skin covered with reptilian scales of epidermal origin made from keratin - prevents water loss and slows dehydration rates 
  • Found in essentially all habitat types 
  • Claws usually present on the ends of the digits 
  • Have an amniotic egg - the developing embryo is surrounded by an amnion which contains the watery amniotic fluid 
  • Shells also present to protect the egg
  • All have internal fertilization accomplished by a copulatory organ
    • ]]>     2017-01-23 15:34:31 UTC https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148747460     pnguyen2017 https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148816927 2017-01-23 18:21:36 UTC https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148816927 Examples: pnguyen2017 https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148825763 2017-01-23 18:45:48 UTC https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148825763 pnguyen2017 https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148826587 2017-01-23 18:48:03 UTC https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148826587 pnguyen2017 https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148826935 2017-01-23 18:48:56 UTC https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148826935 pnguyen2017 https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148827432 2017-01-23 18:50:08 UTC https://padlet.com/pnguyen2017/ae8xib31hz88/wish/148827432