Day 72, pp. 678 -- 690

notochord (1)

phyryngeal slits (1)

gas exchange (dissection) (3)

tunicates (5)

lancelet, Tampa Bay, Florida (2)

lancelet (5)

Bozeman on animals (9)

jaws (4) (not sure the credentials of this channel, but it seems accurate enough)

amniotic egg (5)

lamprey (3)

hagfishes (3)

lamprey (10)

ostracoderms (skim)

conodonts (3)

conodonts (1)

placoderms (dunkleosteus)(don't miss the very end) (3)

extra -- the bloop

chondrichthyes

sharks

extra

ovovivipaous, viviparous, oviparous (4)

bony fishes (6)

swim bladder (4)

lungfishes (3)

 

Quiz, pp. 678 --690

1.  What four anatomical features characterize the phylum Chordata?

2.  A few groups of chordates (the tunicates and lancelets) are i___________s, but most are v_______________.

3.  Sketch the phylogeny of vertrebrates, figure 34.7, and make sure you understand what it means.

4.  Chodrichthyes, sharks and rays, have skeletons of c_______________.