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Life Science Review 15.4
Test Description: Echinoderms
Instructions: Answer all questions to get your test result.
1) The name echinoderms means
A
simple nervous system
B
endoskeleton
C
spiny skinned
D
water vascular system
2) Spines are located on an echinoderm's
A
exoskeleton
B
2 of the choices
C
endoskeleton
D
external skeleton
3) Endoskeletons made of bone are
A
hard and bony
B
flexible and bony
C
flexible and stiff
D
2 of the choices
4) What kind of body symmetry do adult echinoderms have?
A
asymmetry
B
radial symmetry
C
body symmetry
D
bilateral symmetry
5) What kind of body symmetry do echinoderm larva have?
A
body symmetry
B
radial symmetry
C
bilateral symmetry
D
asymmetry
6) What controls the movement of sea stars?
A
endoskeleton
B
tube feet
C
water vascular system
D
radial nerve
7) Brittle stars and Basket stars differ from sea stars in that they
A
don't have suckers on their tube feet
B
have longer, slimmer arms
C
are smaller
D
all of the choices
8) Which echinoderms form a solid, shell-like structure?
A
brittle stars and basket stars
B
sea lilies and feather stars
C
sea urchins and sand dollars
D
sea cucumbers
9) Which echinoderms are likely to have many arms?
A
sea urchins and sand dollars
B
brittle stars and basket stars
C
sea lilies and feather stars
D
sea cucumbers
10) Which echinoderms have no arms and soft bodies?
A
sea cucumbers
B
sea lilies and feather stars
C
sea urchins and sand dollars
D
brittle stars and basket stars
*select an answer for all questions
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