Glencoe Biology

Chapter 27: Echinoderms and Invertebrate Chordates

Chapter Test Practice

1.
____ evolved into gills used for gas exchange in water.
A)thyroids
B)Pharyngeal slits
C)notochords
D)mouths
2.
The ____ system contains fluid-filled tubes that enable echinoderms to move and get food.
A)water-vascular
B)ampulla
C)gill
D)excretion
3.
Echinoderms utilize ____ for respiration.
A)diaphrams
B)breathing
C)carbon dioxide intake
D)oxygen diffusion
4.
How do invertebrate chordates differ from other chordates?
A)are not deuterosomes
B)contain vertebrate
C)do not have coeloms
D)lack vertebral column
5.
Most echinoderms reproduce ____.
A)internally
B)asexually
C)sexually
D)non-genetically
6.
Sac-shaped invertebrate chordates that lose chordate features in adulthood are called ____.
A)sea stars
B)lancelets
C)urchins
D)tunicates
7.
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
8.
What happens when an echinoderm's ampulla muscles contract?
A)The tube foot shrinks.
B)Water is forced into tube foot.
C)The tail swings.
D)Water-vascular system is shut off.
9.
Which of these statements is true, based on this evolutionary tree?

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A)Echinoderms and chordates have similar gastrula developmnent.
B)Echinoderms and chordates lack body cavities.
C)Echinoderms and chordates are protostomes.
D)Echinoderms and chordates have no ancestral protist.
10.
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
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