Fish/amphibian/reptiles

Front 1

Chordates

Back 1

animal with a notochord, postanal tail, nerve cord, and pharyngeal pouches

Front 2

notochord

Back 2

supports the animals body and extends along the upper part of the body. flexible, but firm

Front 3

postanal tail

Back 3

muscular structure at the end of developing chordates

Front 4

nerve cord

Back 4

at the front of the nerve cord, the brain is. the remainder of the nerve cord becomes the spinal cord

Front 5

pharyngeal pouches

Back 5

several pairs of pouches. they turn into internal gills

Front 6

endoskeletion

Back 6

all vertebrates have an internal skeleton. is made of cartilage
provides a place for muscle attatchment, and protects the organs. endoskeletions all have a vertebrae; backbones that are joined by flexible cartilage

Front 7

ectotherm

Back 7

animal thats body temperature changes with the temperatures in its surroundings.

Front 8

endotherm

Back 8

naimal with a nearly constant internal body temperature

Front 9

Vertebrate Origins

Back 9

about 420 mya.

Front 10

Fish

Back 10

adapted for lving in nearly every type of water envorinment on earth. all fish are ectotherms.some fish spend some of their life in saltwater, and freshwater. fish are ofund in almot any depth of water.

Front 11

fins and scales

Back 11

fins are fanlike structure that most fish have attatched to the endoskeleton. they are used for steering, balancing, and moving. scales are hard thin plates that cover the skin and protect the bodt of the fish.