Life Science Review 15.4 Question Preview (ID: 19554)


Echinoderms. TEACHERS: click here for quick copy question ID numbers.

The name echinoderms means
a) spiny skinned
b) endoskeleton
c) simple nervous system
d) water vascular system

Spines are located on an echinoderm's
a) endoskeleton
b) exoskeleton
c) external skeleton
d) 2 of the choices

Endoskeletons made of bone are
a) hard and bony
b) flexible and stiff
c) flexible and bony
d) 2 of the choices

What kind of body symmetry do adult echinoderms have?
a) radial symmetry
b) asymmetry
c) bilateral symmetry
d) body symmetry

What kind of body symmetry do echinoderm larva have?
a) radial symmetry
b) bilateral symmetry
c) asymmetry
d) body symmetry

What controls the movement of sea stars?
a) radial nerve
b) water vascular system
c) endoskeleton
d) tube feet

Brittle stars and Basket stars differ from sea stars in that they
a) have longer, slimmer arms
b) are smaller
c) don't have suckers on their tube feet
d) all of the choices

Which echinoderms form a solid, shell-like structure?
a) sea urchins and sand dollars
b) sea lilies and feather stars
c) brittle stars and basket stars
d) sea cucumbers

Which echinoderms are likely to have many arms?
a) sea urchins and sand dollars
b) sea lilies and feather stars
c) brittle stars and basket stars
d) sea cucumbers

Which echinoderms have no arms and soft bodies?
a) sea urchins and sand dollars
b) sea lilies and feather stars
c) brittle stars and basket stars
d) sea cucumbers

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