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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