Phylum Echinodermata: Class Echinoidea
Members of echinoids have a large
arm
disk
coelom
foot
coelom
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Larva of sea urchin is named as:A. bipinnaria larva
B. Muller’s larva
C. planula larva
D. pluteus larva
Approximate number of species that are included in class Echinoidea is:
A. 1000
B. 4000
C. 2000
D. 5000
Chewing apparatus in sea urchin is named as:
A. Aristotle’s lantern
B. chemoreceptors
C. photoreceptors
D. sinus glands
How many numbers of Ossicles in sea urchin:
A. 32
B. 34
C. 35
D. 56
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