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Echinoderms
Test Description: Echinoderm Quiz
Instructions: Answer all questions to get your test result.
1) What does the word echinoderm mean?
A
furry skin
B
soft skin
C
hairy skin
D
spiny skin
2) How many years have Echinoderms existed?
A
500 million
B
10 million
C
100 million
D
5 million
3) Which echinoderm adaptation makes them more advanced than any other invertebrate?
A
pentaradial symmetry
B
endoskeleton
C
tube feet
D
exoskeleton
4) What is the correct order for water flow entering a sea star?
A
tube feet, madroporite, ring canal, stone canal, radial canal
B
stone canal, ring canal, radial canal, tube feet, madroporite
C
madroporite, ring canal, stone canal, radial canal, lateral canal, tube feet
D
madroporite, stone canal, ring canal, radial canal, lateral canal, tube feet
5) Which echinoderm structures aid in movement, feeding and respiration?
A
swimmerets
B
tube feet
C
antennae
D
gills
6) What type of body plan do echinoderms have?
A
bilateral symmetry
B
pentaradial symmetry
7) Which structures are found in the central disk of a sea star?
A
mouth and gonads
B
digestive glands and gonads
C
digestive glans and stomach
D
mouth and stomach
8) Which are the oldest Echinoderms?
A
sea urchins
B
crinoids
C
brittle stars
D
sea cucumbers
9) Which structure lies between the bivum rays?
A
stone canal
B
ampullae
C
ring canal
D
madroporite
10) Which echinoderm is elongated and can regenerate its internal organs?
A
brittle star
B
sea urchin
C
sea cucumber
D
sand dollar
*select an answer for all questions
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