Quiz 3 - Ch. 19

Question 1

Chordata

Answer 1

dorsal hollow nerve chord

notochord (directs development of dorsal hollow nerve cord)

post-anal tail

pharyngeal gill slits

(ex: us!!… and a lot of other stuff)

Question 2

Jawless Vertebrates

Answer 2

cordates w/o jaws for eating

ex: hagfish and lampreys

Question 3

Jawed Vertebrates

Answer 3

cordates

gills and paired fins

bilateral symmetry

complete digestive tract

ex: shark, fish, seahorse, etc.

Question 4

Tetrapod

Answer 4

vertebrates with two pairs of limbs

Question 5

Amphibians

Answer 5

chordates

tetrapods

tied to water for reproduction

larval stage

ex: frogs, toads, etc.

Question 6

Reptile

Answer 6

chordates

tetrapods adapted to life on land

scales/cold-blooded

Amniotic egg

Question 7

Amniotic Egg

Answer 7

the embryo develops inside an amnion (membrane filled with amniotic fluid that protects/nurtures embryo)

Question 8

Birds

Answer 8

chordates

Amniotic Egg

adapted for flight

warm-blooded

Question 9

Mammals

Answer 9

chordates

Amnion

have hair/produce milk