Glencoe Biology

Section 2: Invertebrate Chordates

Self-Check Quizzes

1.
____ evolved into gills used for gas exchange in water.
A)thyroids
B)Pharyngeal slits
C)notochords
D)mouths
2.
How do invertebrate chordates differ from other chordates?
A)are not deuterosomes
B)contain vertebrate
C)do not have coeloms
D)lack vertebral column
3.
Which structure enables a motion that is an important evolutionary development?

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A)notochord
B)mouth
C)pharyngeal pouches
D)ancestral thyroid gland
4.
Sac-shaped invertebrate chordates that lose chordate features in adulthood are called ____.
A)sea stars
B)lancelets
C)urchins
D)tunicates
5.
What does this cladogram indicate?

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A)evolution of fish
B)evolutionary relations of echinoderms
C)possible phylogeny of invertebrate chordates
D)evidence that amphibians are invertebrates
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