Glencoe Biology

Section 1: Echinoderm Characteristics

Self-Check Quizzes

1.
The ____ system contains fluid-filled tubes that enable echinoderms to move and get food.
A)water-vascular
B)ampulla
C)gill
D)excretion
2.
Most echinoderms reproduce ____.
A)internally
B)asexually
C)sexually
D)non-genetically
3.
Echinoderms utilize ____ for respiration.
A)diaphrams
B)breathing
C)carbon dioxide intake
D)oxygen diffusion
4.
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.
5.
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.
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